Patent Grant
8140367
1. Technical Field
The present disclosure relates in general to the field of computers, and more particularly to the use of computer software. Still more particularly, the present disclosure relates to the creation of semi-custom software through the use of a standardized software factory.
2. Description of the Related Art
Software can be classified as being in one of two main categories: “off-the-shelf” and “custom.” As the name implies, off-the-shelf software is pre-developed software that has little, if any flexibility. Thus, the customer must tailor her activities to conform to the software. While such software is initially inexpensive compared to custom software, long-term costs (in time and money for software implementation, training, business process alterations, etc.) can be onerous in an enterprise environment. Custom software, as the name implies, is custom built software that is tailored to existing or planned activities of the customer.
Today, software development, and particularly custom software development, is perceived as more of an art than a science. This is particularly true for custom software that is being created by a third-party for an enterprise customer. That is, a developer must rely on her experience, training, intuition and communication skills to create software that is both unique and reliable. This often leads to software of varying degrees of reliability, usefulness and value to the customer.
A method, system, and computer-readable medium that support an open marketplace for distributed service arbitrage with an integrated risk management is presented. Orders for work packets, which are processed within a software factory, are allowed to be bid upon only by software factories that have been previously ranked by a centralized marketplace portal, thus ensuring that only qualified software factories are allowed to service such orders.
The above, as well as additional purposes, features, and advantages of the present invention will become apparent in the following detailed written description.
The novel features believed characteristic of the invention are set forth in the appended claims. The invention itself, however, as well as a preferred mode of use, further purposes and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, where:
Presented herein is a software factory, which includes a collection of business and Information Technology (IT) governance models, operational models, delivery methods, metrics, environment and tools bundled together to improve the quality of delivered software systems, control cost overruns, and effect timely delivery of such systems. The software factory described herein offers a practical solution to developing software systems using multiple sites that are geographically distributed. The issues of varying timezones and the hand-over between various teams residing in such timezones are handled by exchanging work packets. A work packet is a self-contained work unit that is composed of processes, roles, activities, applications and the necessary input parameters that allow a team to conduct a development activity in a formalized manner with visibility to progress of their effort afforded to the requesting teams.
The novel software factory described herein is a uniquely engineered scalable efficiency model construct that transforms a traditional software development art form into a repeatable scientific managed engineered streamline information supply chain. The software factory incorporates applied system and industrial engineering quality assured efficiencies that provide for the waste eliminating, highly optimized performed instrumentation, measured monitoring and risk mitigated management of software development.
Software Factory Overview
With reference now to the figures, and in particular to
Thus, Software Factory Governance, which includes SFGB 108 and SFO 110, provides the guidance, constraints, and underlying enforcement of all the factory policies and procedures, in support of their governing principles in support of the strategic objects of the Software Factory 100. Software Factory governance consists of factory business, IT and operations governance. The principles, policies and procedures of these models are carried out by two governing bodies—the Business Governance Board and the IT Governance Board (both part of SFGB 108), and an enforcement body—the Software Factory Operations 110.
Thus, Software Factory Governance is responsible for:
Business and IT strategic planning;
Assuring that Business and IT strategies are aligned;
Setting Goals;
Monitoring those goals;
Detecting Problems in Achieving those goals;
Analyzing Problems;
Identifying Reasons;
Taking Action;
Providing Feedback; and
Re-Strategizing (Continue process improvement).
As soon as a project is deemed worthy to proceed, the job of creating the custom software is sent to a Design Center 112, where the project is broken into major functional areas, including those handled by a Requirements Analysis Team 114 and an Architectural Team 116.
The Requirements Analysis Team 114 handles the Requirement Management side of the Design Center 112, and is responsible for collecting the business requirements from the lines of business and populating these requirements into the tools. Analysis of business requirements is also carried out in order to derive associated IT requirements. Some requirements (e.g. system requirements) may have a contractual constraint to use a certain infrastructure. Requirements are analyzed and used in the basis for business modeling. These requirements and representative business (contextual, event and process models) are then verified with and signed off from project stakeholders. Requirements are then base-lined and managed within release and version control.
The Architectural Side of the Design Center 112 is handled by the Architecture Team 116, which takes the output of the requirement/analysis/management side of the design center, and uses architectural decision factors (functional requirements, non-functional requirements, available technology, and constraints), to model a design with appropriate example representation into detail design specification, that is bundled with other pertinent factors into a work packet for assembly lines to execute.
Work Packets 118 are reusable, self-contained, discrete units of software code that constitute a contractual agreement that governs the relationship among Design Center 112, Software Factory Governance Board 108, Software Factory Operations 110, and Assembly Line 120. That is, each work packet 118 includes governance policies and procedures (e.g., including instructions for how work reports are generated and communicated to the client), standards (e.g., protocol for the work packet 118), reused assets (e.g., reusable blocks of code, including the requirements, instructions and/or links/pointers associated with those reusable blocks of code), work packet instructions (e.g., instructions for executing the work packet 118), integration strategy (e.g., how to integrate the work packet 118 into a client's security system), schedule (e.g., when deliverables are delivered to the client), exit criteria (e.g., a checklist for returning the work packet 118 and/or deliverables to the software factory 100), and Input/Output (I/O) work products (e.g., artifact checklist templates for I/O routines).
Assembly Line(s) 120 (Job Shop(s)) receive and execute the work packets 118, which are specified by the Design Center 112, to create a customized deliverable 122. A “deliverable” is defined as a unit of software that is in condition for delivery to, and/or execution on behalf of, a customer or client. Thus, in the context of the present invention, a deliverable is defined as an output product of the software factory that is described herein. As shown in exemplary manner, the assembly line 120 puts the work packets 118 into a selected low-level design to generate a deliverable (executable product). While assembly line 120 can be a manual operation in which a coding person assembles and tests work packets, in another embodiment this process is automated using software that recognizes project types, and automatically assembles work packets needed for a recognized project type.
Various tests can be performed in the assembly line 120, including code/unit tests, integration test, system test, system integration test, and performance test. “Code/unit test” tests the deliverable for stand-alone bugs. “Integration test” tests the deliverable for compatibility with the client's system. “System test” checks the client's system to ensure that it is operating properly. “System integration test” tests for bugs that may arise when the deliverable is integrated into the client's system. “Performance test” tests the deliverable as it is executing in the client's system. Note that if the deliverable is being executed on a service provider's system, then all tests described are obviously performed on the service provider's system rather than the client's system.
A User Acceptance Test Team 124 includes a client stakeholder that is charged with the responsibility of approving acceptance of deliverable 122.
Software factory 100 may utilize enterprise partners 104 to provide human, hardware or software support in the generation, delivery and/or support of deliverables 122. Such third party contractors are viewed as a resource extension of the software factory 100, and are governed under the same guidelines described above.
If an enterprise partner 104 is involved in the generation of work packets 118 and/or deliverables 122, an interface between the software factory 100 and the enterprise partner 104 may be provided by a service provider's interface team 126 and/or a product vendor's interface team 128. Service provided by an enterprise partner 104 may be a constraint that is part of contractual agreement with a client to provide specialized services. An example of such a constraint is a required integrated information service component that is referenced in the integration design portion of the work packet 118 that is sent to assembly line 120. Again, note that third party service providers use a standard integration strategy that is defined by the software factory 100, and, as such, are subject to and obligated to operate under software factory governance.
Product vendor's interface team 128 provides an interface with a Product Vendor, which is an enterprise partner 104 that provides software factory 100 with supported products that maybe used within a software factory solution. Product Vendors are also responsible for providing product support and maintaining vendor's relationships, which are managed under the software factory's governance guidelines.
Support Team 130 includes both Level 2 (L2) support and Level 1 (L1) support.
L2 Support is provided primarily by Software Engineers, who provide problem support of Software Factory produced delivered code for customers. That is, if a deliverable 122 doesn't run as designed, then the software engineers will troubleshoot the problem until it is fixed. These software engineers deliver technical assistance to Software Factory customers with information, tools, and fixes to prevent known software (and possibly hardware) problems, and provide timely responses to customer inquiries and resolutions to customer problems.
L1 support is primarily provided by an L1 Help Desk (Call Center). L1 Help Desk support can be done via self-service voice recognition and voice response, or by text chat to an automated smart attendant, or a call can be directed to a Customer Service Representative (CSR). Customer Service Representatives in this role provide first line of help problem support of Software Factory produced deliverables. Such help includes user instruction of known factory solution procedures. For any related customers issues that cannot be resolved through L1, the L1 Help Desk will provide preliminary problem identification, create trouble ticket entry into trouble tracking system, which then triggers a workflow event to dynamically route the problem issue to an available and appropriate L2 support group queue.
With reference now to
The software project is then inducted (block 208). As will be described in more detail below, the project induction provides an initial introduction of the project to the software factory. Through the use of various parameters, including those found in records of other projects, checklists, et al., the project is initially evaluated. This evaluation includes determining if the software factory has the capacity, resources, bandwidth, etc. needed for the project. If so, then a determination is made as to whether the project is qualified for acceptance by the software factory. Such qualification includes, but is not limited to, determining if the project falls within the guidelines set by a Service Level Agreement (SLA) between the client enterprise and the software factory, whether the project conforms to legal guidelines such as Sarbanes-Oxley, etc. Based on these and other criteria, the project is scored for feasibility, profitability, and desirability for implementation. If the induction process concludes that the project should proceed, then it is categorized into a particular type of project (e.g., payroll, inventory control, database management, marketing, et al.).
If the induction process does not pass (query block 210), indicating that the project should not proceed, then the project is returned to the Client Business Governance Board for additional discussions between the Client Business Governance Board and the software factory, in order to induct a revised project (i.e., reinduct the software project). However, if the induction process passes, then the software project is parsed into major functional areas (block 212). That is, the project is divided up (“broken apart”) in order to establish subunits that can later be integrated into a single custom software (“deliverable”).
Work packets are then obtained for all of the functional areas of the software project (block 214). These work packets are reusable components which are described in detail below. The work packets are then stitched together (block 216) on an assembly line to create deliverable custom software that meets the criteria for the software project that has been established in the earlier steps. The custom software is then tested in the software factory (block 218). Once testing is completed, the custom software is delivered (block 220) to the client customer, who receives on-going support from the support team (block 222). The flow-chart ends at terminator block 224.
While the process has been described for the creation of custom software, the same process is used by a software factory for other activities, including creating a service for a customer, creating standardized software, etc. Thus, the software factory uses work packets to blend software (including reusable artifacts), protocols (e.g., how software will be transmitted, how individuals will be contacted, etc.), governance requirements (e.g., service level agreements that describe how much a service will cost) and operating environments (hardware and software, including operating systems, integrated environments such as SAP™, Rational™, etc.) into a single integrated product, which can then be used in a stand-alone manner or can be fed into another system/product.
Note that software factory 100 is virtual. That is, the different components (e.g., software factory governance board 108, software factory operations 110, design center 112, assembly line 120) may be located in different locations, and may operate independently under the control of information found in work packets 118. In a preferred embodiment, each of the different components of the software factory 100 publishes a set of services that the component can provide and a set of requirements for using these services. These services are functions that are well defined and made visible for outside entities to call.
For example, assume that assembly line 120 publishes a service that it can assemble only work packets that include code and protocol that utilize IBM's Rational™ software development platform. Thus, the assembly line 120 has published its service (set of services includes “assembling work packets”) and the required protocol (set of requirements includes “utilize IBM's Rational™ software development platform”) to the design center 112, which must decide if it wants (or is able) to utilize that particular assembly line 120. If not, then another assembly line from another software factory may be called upon by the design center 112. Behind each offered service are the actual processes that a component performs. These processes are steps taken by the service. Each step is performed by a section of software, or may be performed by an individual who has been assigned the task of performing this step. Each step utilizes leveraged tools, including the work packets 118 described herein. These work packets 118 then implement the process.
By utilizing published interfaces between the different components of the software factory 100, then different components from different software factories can be interchanged according to the capability offered by and protocol used by each component. This enables a “building block” architecture to be implemented through the use of different components from different software factories.
Life Cycle of a Work Packet
There are five phases in the life cycle of a work packet, which are shown in
Work Packet Components
A work packet is a self-contained work unit that comprises processes, roles, activities (parts of the job), applications, and necessary input parameters that allow a team to conduct a development activity in a formalized manner, with visibility to progress of their effort afforded to requesting teams. A work packet is NOT a deliverable software product, but rather is a component of a deliverable software product. That is, a work packet is processed (integrated into a system, tested, etc.) to create one or more deliverables. Deliverables, which were created from one or more work packets, are then combined into a custom software, such as an application, service or system.
In a preferred embodiment, a work packet is composed of the following eight components:
Governance Policies and Procedures—these policies and procedures include protocol definitions derived from a project plan. That is, a project plan for a particular custom software describes how work packets are called, as well as how work packets report back to the calling plan.
Standards—this component describes details about how work packets are implemented into a deliverable in a standardized manner. Examples of such standards are naming conventions, formatting protocol, etc.
Reused Assets—this component includes actual code, or at least pointers to code, that is archived for reuse by different assembled deliverables.
Work Packet Instructions—this component describes detailed instructions regarding how a work packet is actually executed. That is, work packet instructions document what work packets need to be built, and how to build them. These instructions include a description of the requirements that need to be met, including design protocols, code formats, and test parameters.
Integration Strategy—this component describes how a set of work packets, as well as deliverables developed from a set of work packets, are able to be integrated into a client's system. This component includes instructions regarding what processes must be taken by the client's system to be prepared to run the deliverable, as well as security protocols that must be followed by the deliverable. The component may also include a description of how one deliverable will interact with other applications that are resident to the client's computer system.
Scheduling—this component describes when a set of work packets are to be sent to an assembly line, plus instructions on monitoring the progress and status of the creation of the work packet.
Exit Criteria—this component includes instructions (e.g., through the use of a checklist) for deploying a deliverable to the client's system. That is, this component is the quality criteria that the deliverable must meet before it can be considered completed and acceptable for a project.
Input Work Products—this component includes Input/Output (I/O) templates that are used to describe specific work products that are needed to execute the activities of the work packet (in the assembly line) to build the deliverable.
Defining a Work Packet
The process of defining a work packet is called a “work packet definition process.” This process combines critical references from governance, factory operations (e.g., factory management, project management), business criteria, and design (including test) artifacts. Structured templates enable governance, design center, and factory operations to define the referenced artifacts by filling in corresponding functional domain templates, thus defining the contents of the work packet. Thus, a work packet includes not only reusable software code, but also includes governance and operation instructions. For example, a work packet may include directions that describe a sequence of steps to be taken in a project; which data is to be used in the project; which individuals/departments/job descriptions are to perform each step in the project; how assigned individuals/departments are to be notified of their duties and what steps/data are to be taken and used, et al. Thus, each work packet includes traceability regarding the status of a job, as well as code/data/individuals to be used in the execution of a project.
Thus, work packets are created from unique references to governance, factory operations (factory mgt, project mgt), business, and design (including test) artifacts. The packet definition process provides structure templates that enable governance, design center, and factory operations to define referenced artifacts (newly defined artifact identifiers or any reusable part of existing work packet definitions), by filling in corresponding functional domain (e.g., eXtensible Markup Language—XML) templates. What can be defined may be controlled by a Document Type Definition (DTD). The DTD states what tags and attributes are used to describe content in the deliverable, including where each XML tag is allowed and which XML tags can appear within the deliverable. XML tag values are defined and applied to a newly defined XML template for each functional area of a design center. These XML templates are then merged into one hierarchical structure when later assembled into finalized work packets.
With reference now to
The metrics 406 may be one or more of: governance metrics 420 (measurable governance indicators, such as business plans); factory metrics 422 (measurable indicators that describe the capabilities of the software factory, including assembly line capacity); and system metrics 424 (measurable indicators that describe the capabilities of the client's computer system on which deliverables are to be run).
Based on a template 408 for a particular deliverable, artifacts 404 and metrics 406 are used by a packet assembly process 426 to assemble one or more work packets.
Assembling a Work Packet
Template 408, shown in
With reference now to
Archiving Work Packets
As stated above, work packets are fungible (easily interchangeable and reusable for different deliverables). As such, they are stored in an archival manner. In order to retrieve them efficiently, however, they are categorized, classified, and named. For example, consider the header 600 shown in
An alternate header for a work packet is shown in
Exemplary pseudocode for defining the work packet is:
With reference now to
Software Factory Readiness Review
Before a software factory can receive an order from a client to create work packets and their resultant deliverables/applications, a determination should be made to determine whether the factory is ready to take on project work. This determination can be made through the use of a scorecard, which provides a maturity assessment of the factory. An exemplary scorecard is as follows:
In one embodiment of the present invention, all of these steps are taken before a project is taken on by the Software Factory Governance Board 106 described above in
Software Factory On-Boarding
As indicated in Step 15 of the Factory Readiness Review process, software factory on-boarding is a rapid process that uses a series of checklist questionnaires to help with the rapid set-up and configuration of the software factory.
The software factory on-boarding process is an accelerator process model that enables the roll out configuration of uniquely defined software factor instances. This is a learning process that leverages patterns used in prior on-boarding exercises. This evolution provides a pertinent series of checklist questionnaires to qualify what is necessary for a rapid set-up and confirmation of a factory instance to support a project. Based on project type assessments, installed factory patterns can be leveraged to forecast what is necessary to set up a similar factory operation.
Exemplary steps taken during a rapid software factory on-boarding are:
Rapid on-boarding provides a calculated line and work cell balancing capability view of leveraged resources, thus improving throughput of assembly lines and work cells while reducing manpower requirements and costs. The balancing module instantly calculates the optimum utilization using the fewest operators to achieve the result requested. Parameters can be varied as often as needed to run “what-if” scenarios.
With reference now to
Project Induction Process
Before a software project is accepted by the software factory, it should first be inducted. This induction process provides an analysis of the proposed software project. The analysis not only identifies what processes and sub-processes will be needed to create the software project, but will also identify potential risks to the software factory and/or the client's computer system.
With reference now to the flow-chart shown in
Service definition process 906 utilizes electronic questionnaire checklists 908 to help define a service definition template 910. Checklists 908 are a collection of drill down checklists that provide qualifying questions related to the candidate project 902. The questions asked in the checklists 908 are based on pre-qualifying questions. That is, as shown in
Returning to
The scoring and classification process 914 is a scoring and tabulation of the raw data that is output from SAR 912. Based on the output from SAR 912, the scoring and classification process 914 rates the factory project proposal 904 on project definition completeness, trace-ability and risk exposure. If the service definition template 910 indicates that third parties will be used in the candidate project 902, then the scoring and classification process 914 will evaluate proposed third party providers 932 through the use of a third party required consent process 918.
The third party required consent process 918 manages relationships between third party providers 932 and the software factory 100. Example of such third party providers 932 include, but are not limited to, a third party contractor provider 920 (which will provide software coding services for components of the candidate project 902), a third party service provider 922 (which will provide an execution environment for sub-components of the candidate project 902), and vendor product support 924 (which provides call-in and/or on-site support for the completed project). The determination of whether the third party providers 932 and the software factory 100 can work in partnership on the project is based on a Yes/No questionnaire that is sent from the software factory 100 to the third party providers 932. The questionnaire that is sent to the third party providers 932 includes questions about the third party's financial soundness, experience and capabilities, development and control process (including documentation of work practices), technical assistance that can be provided by the third party (including available enhancements), quality practices (including what type of conventions the third party follows, such as ISO 9001), maintenance service that will be provided, product usage (including a description of any licensing restrictions), costs, contracts used, and product warranty.
If the factory project proposal 904 fails this scoring process, it is sent back to a remediation process 916. However, if scoring process gives an initial indication that the factory project proposal 904 is ready to be sent to the software factory, then it is sent to the service induction process 926.
Once the factory project proposal 904 has gone through the SAR process 912 and any third party coordination has been met, scored and classified, the factory project proposal 904 is then inducted (pre-qualified for approval) by the service induction process 926. During the service induction process 926, the scored and classified project is sent through a Conceptual Requirements Review, which utilizes a service repository scorecard 928 to determine if the software factory 100 is able to handle the candidate project 902. That is, based on the checklists, evaluations, scorecards and classifications depicted in
Dynamic Generation of Software Packets
As described herein, work packets are created in accordance with the client's needs/capacities. An optimal way to determine what the client's needs/capacities are is through the use of checklists. A standard checklist, however, would be cumbersome, since standard checklists are static in nature. Therefore, described now is a process for generating and utilizing dynamic checklists through the use of a Software Factory Meta-Morphic Dynamic Restructuring Logic Tree Model. This model provides the means to expedite checklist data collections, by dynamically restructuring and filtering non-relevant checklist questions, depending on answers evaluated in real time. Such a model not only enables a meta-data driven morphing of decision trees that adapt to the relevancy of what is deemed an applicable line of questioning, but also provides a highly flexible solution to pertinent data collection.
As now described, the Software Factory Meta-Morphic Dynamic Restructuring Logic Tree Model qualifies answers to checklist questions to determine if a next checklist is relevant to what is needed to determine what type of work packets are needed for the client's project. This expedites the data collection and analysis process, and thus provides a scalable flexibility to data collection and logic decision tree processing and constructions.
Referring now to
Referring now to
To tie together the details shown in
Referring now to block 1024, answers to the new checklist are evaluated based on their contextual reference and the nature of the questioning objectives. That is, based on what question parameters are used for the work packets being generated, a determination can be made as to whether additional new checklists need to be constructed (query block 1026). If so, then the process returns to block 1022 in an iterative manner. If not, then the process ends (terminator block 1028), indicating that the checklist process for determining what qualities are needed in the work packets has concluded.
Referring again to block 1024, note that leading indicator can influence how answers are evaluated. Such leading indicators include descriptors of the final deliverable that will be generated by the software factory, a client's name or field, etc. As leading indicators change, they can change content relevance and perspective reference points and drive the restructuring of relevant questions that can be restructured along that leading indicator relative perspective.
As thus described, for every answer collected by a question posed on a checklist and the scope of the question, all answers are evaluated for relevancy (scope, project type and contextual reference etc.). If a question becomes irrelevant, then that question is filtered and not asked in future questionnaires having a similar context. This provides a highly flexible solution for essential pertinent data collection. That is, the line of questioning and the decision tree changes with each new iteration (thus creating a dynamic logic tree that restructures itself, depending on how it used by maintaining a contextual reference base). Like water reforming into a drop, no matter how many times and in what manner a set of questions is parsed into segments, the set of questions reforms its remnants into a new wholly formed structure.
Software Factory Health Maintenance
The software factory described herein should be monitored for a variety of issues. Such monitoring is performed by a Software Factory Analytics and Dashboard, which ensures that both a single instance and multiple instances of the Factory can function smoothly. The monitored metrics include project metrics as well as factory operations, system, business, and performance activities. The analytics of the overall health of the factory can be audited and monitored and used as a basis for continual process improvement strategic analysis and planning. This ensures fungibility and consistency, provides quality assurance, reduces the risk of failure, and increases cost effectiveness.
The health of the software factory is monitored through messages on an Enterprise Service Bus (ESB), which is a bus that is that couples the endpoint processes of the software factory with dashboard monitors. An ESB provides a standard-based integration platform that combines messaging, web services, data transformation and intelligent routing in an event driven Service Oriented Architecture (SOA). In an ESB-enabled, event-driven SOA, applications and services are treated as abstract endpoints, which can readily respond to asynchronous events. The SOA provides an abstraction away from the details of the underlying connectivity and plumbing. The implementations of the services do not need to understand protocols. Services do not need to know how messages are routed to other services. They simply receive a message from the ESB as an event, and process the message. Process flow in an ESB can also involve specialized integration services that perform intelligent routing of messages based on content. Because the process flow is built on top of the distributed SOA, it is also capable of spanning highly distributed deployment topologies between services on the bus.
As stated above, the messages that flow on the ESB contain measurable metrics and states that are received through an event driven Service Oriented Architecture (SOA) Model. This information is via XML data stream messages, which can contain factory operation, system, business and performance and activity related metrics, which provide a relative point of origin for low level measurement. The messages can be used in analytics of the factory's overall health, which is audited and monitored, and can be used as a basis for continual process improvement strategic analysis and planning. Upon update, the data stream is analyzed and the aggregated Key Performance Indicators (KPIs) are calculated and sent to the dashboard display device, where the XML is applied to a style template and rendered for display.
The Health Monitoring System provides factory exception and error reporting, system monitoring, Performance Monitoring and Reporting, Proactive and Reactive Alert Notification, Message Auditing and Tracking Reporting, Daily View of Activity, and Historical Reports. Information collected includes what information (regarding the software factory metrics) was sent, to whom it was sent, when it was sent, and how many messages were sent via the ESB interface between the software factory and the client's system.
Information in the messages includes timestamps for the sender (from the software factory), the receiver (in the analytic section), and the hub (the ESB). Derived metrics include:
What Service Requestor and Provider are Most Problematic?
Compliance—reporting responsibility, procedural and policy execution
Continual Process Improvement
Comparative analysis against baseline and performance objectives
Factory Contractual Analysis
Financial—Profitability
Asset Type Creation Analysis per project type
When (date/time) Work Packets Definitions are created by project
Work Packet creation Rate
Work Packet to Project Type Pattern Analysis
Design Compliance (Assembly Lines and Job Shops), Asset/Artifact Reuse
Design Solution Pattern Analysis per Work Packet Type
Asset Management—Metrics
Asset Repository Growth Rate
Asset Repository Mix
Asset Reuse Rate
Project Asset Usage Patterns
Project—Metrics
Project Proposal Induction Attempt/Success Ratio
Factory Project Client/Industry Analysis
Resource Availability, Activity and Tasks Status
Milestone Achievement Rate/Status
Schedule Analysis
Budget/Cost Analysis
Risk Identification
Issue Tracking
Defect Tracking Resolution, Project Asset Usage Patterns
Intelligent Forecaster
Factory Operations—Metrics
Approved Project Pipeline
Project Throughput Rate Analysis
Informational Analysis
Work Packet Distribution Analysis
Capacity Planning (Forecast/Logistics/Availability)
Resource Inventory Levels
Factory Utilization Rate
Workload Characterization
Transactional Analysis
Performance Analysis Distribution
Traffic Analysis
Equipment and Facilities
Headcount and Human Resources Data Applied to Physical Resources
Worker Turnover Rate
Labor Analysis (hours, overtime, per type of factory worker)
Process Technologies Used
Production Volumes
Factory Operation Trouble Ticket/Problem Resolution (e.g. internal factory operations (infrastructure) maintenance)
Factory Financials—Metrics
Revenue per Project
Operational Costs per Project
Profit per Project
Profit per Project Type
System Engineering Analysis
System Engineering—Project Risks
System Engineering—Software Defects
System Engineering—Issue Tracking and Resolution
SEAT Review Scorecards Results
Quality Assurance Cause Effect Correlation Analysis
Assembly Lines and Job Shops—Metrics
Work Packet Consumption Rate
Number of Cross Trained Assembly Line and Job Shop Workers
Availability Rate
Quality Rating per Worker
Referring now to
Each service endpoint 1102 is coupled to the Enterprise Service Bus (ESB) 1120, to which XML message 1122 (or similar markup language formatted messages) can flow to governance monitors 1124, factory operations monitors 1126 and/or system engineering monitors 1128, on which the messages generate dashboard progress messages.
With reference now to
Quality metrics are also monitored for the execution of the work packets in the assembly line area (block 1216). That is, as different work packets are executed, assembled and tested in the assembly line area, the quality of such operations is tracked. These metrics include, but are not limited to, those described above, plus completion rates, detection of software defects, hazards (risks) caused by the execution of the work packets and other issues. This information (and optionally any other information monitored and tracked in block 1206 to 1214) is sent on the ESB to a dashboard in a monitoring display, as described in
With reference now to
Client computer 1302 includes a processor unit 1304 that is coupled to a system bus 1306. A video adapter 1308, which drives/supports a display 1310, is also coupled to system bus 1306. System bus 1306 is coupled via a bus bridge 1312 to an Input/Output (I/O) bus 1314. An I/O interface 1316 is coupled to I/O bus 1314. I/O interface 1316 affords communication with various I/O devices, including a keyboard 1318, a mouse 1320, a Compact Disk-Read Only Memory (CD-ROM) drive 1322, a floppy disk drive 1324, and a flash drive memory 1326. The format of the ports connected to I/O interface 1316 may be any known to those skilled in the art of computer architecture, including but not limited to Universal Serial Bus (USB) ports.
Client computer 1302 is able to communicate with a software deploying server 1350 via a network 1328 using a network interface 1330, which is coupled to system bus 1306. Network interface 1330 may include an Enterprise Service Bus (not shown), such as ESB 1120 shown in
A hard drive interface 1332 is also coupled to system bus 1306. Hard drive interface 1332 interfaces with a hard drive 1334. In a preferred embodiment, hard drive 1334 populates a system memory 1336, which is also coupled to system bus 1306. System memory is defined as a lowest level of volatile memory in client computer 1302. This volatile memory includes additional higher levels of volatile memory (not shown), including, but not limited to, cache memory, registers and buffers. Data that populates system memory 1336 includes client computer 1302's operating system (OS) 1338 and application programs 1344.
OS 1338 includes a shell 1340, for providing transparent user access to resources such as application programs 1344. Generally, shell 1340 is a program that provides an interpreter and an interface between the user and the operating system. More specifically, shell 1340 executes commands that are entered into a command line user interface or from a file. Thus, shell 1340 (as it is called in UNIX®—UNIX is a registered trademark of The Open Group in the United States and other countries), also called a command processor in Windows® (WINDOWS is a registered trademark of Microsoft Corporation in the United States and other countries), is generally the highest level of the operating system software hierarchy and serves as a command interpreter. The shell provides a system prompt, interprets commands entered by keyboard, mouse, or other user input media, and sends the interpreted command(s) to the appropriate lower levels of the operating system (e.g., a kernel 1342) for processing. Note that while shell 1340 is a text-based, line-oriented user interface, the present invention will equally well support other user interface modes, such as graphical, voice, gestural, etc.
As depicted, OS 1338 also includes kernel 1342, which includes lower levels of functionality for OS 1338, including providing essential services required by other parts of OS 1338 and application programs 1344, including memory management, process and task management, disk management, and mouse and keyboard management.
Application programs 1344 include a browser 1346. Browser 1346 includes program modules and instructions enabling a World Wide Web (WWW) client (i.e., client computer 1302) to send and receive network messages to the Internet using HyperText Transfer Protocol (HTTP) messaging, thus enabling communication with software deploying server 1350.
Application programs 1344 in client computer 1302's system memory (as well as software deploying server 1350's system memory) also include a Software Factory Program (SFP) 1348. SFP 1348 includes code for implementing the processes described in
The hardware elements depicted in client computer 1302 are not intended to be exhaustive, but rather are representative to highlight essential components required by the present invention. For instance, client computer 1302 may include alternate memory storage devices such as magnetic cassettes, Digital Versatile Disks (DVDs), Bernoulli cartridges, and the like. These and other variations are intended to be within the spirit and scope of the present invention.
Note further that, in a preferred embodiment of the present invention, software deploying server 1350 performs all of the functions associated with the present invention (including execution of SFP 1348), thus freeing client computer 1302 from having to use its own internal computing resources to execute SFP 1348.
It should be understood that at least some aspects of the present invention may alternatively be implemented in a computer-readable medium that contains a program product. Programs defining functions of the present invention can be delivered to a data storage system or a computer system via a variety of tangible signal-bearing media, which include, without limitation, non-writable storage media (e.g., CD-ROM), writable storage media (e.g., hard disk drive, read/write CD ROM, optical media), as well as non-tangible communication media, such as computer and telephone networks including Ethernet, the Internet, wireless networks, and like network systems. It should be understood, therefore, that such signal-bearing media when carrying or encoding computer readable instructions that direct method functions in the present invention, represent alternative embodiments of the present invention. Further, it is understood that the present invention may be implemented by a system having means in the form of hardware, software, or a combination of software and hardware as described herein or their equivalent.
Software Deployment
As described above, in one embodiment, the processes described by the present invention, including the functions of SFP 1348, are performed by software deploying server 1350. Alternatively, SFP 1348 and the method described herein, and in particular as shown and described in
Referring then to
Next, a determination is made on whether the process software is to be deployed by having users access the process software on a server or servers (query block 1410). If the users are to access the process software on servers, then the server addresses that will store the process software are identified (block 1412).
A determination is made if a proxy server is to be built (query block 1414) to store the process software. A proxy server is a server that sits between a client application, such as a Web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself. If not, it forwards the request to the real server. The two primary benefits of a proxy server are to improve performance and to filter requests. If a proxy server is required, then the proxy server is installed (block 1416). The process software is sent to the servers either via a protocol such as FTP or it is copied directly from the source files to the server files via file sharing (block 1418). Another embodiment would be to send a transaction to the servers that contained the process software and have the server process the transaction, then receive and copy the process software to the server's file system. Once the process software is stored at the servers, the users, via their client computers, then access the process software on the servers and copy to their client computers file systems (block 1420). Another embodiment is to have the servers automatically copy the process software to each client and then run the installation program for the process software at each client computer. The user executes the program that installs the process software on his client computer (block 1422) then exits the process (terminator block 1424).
In query step 1426, a determination is made whether the process software is to be deployed by sending the process software to users via e-mail. The set of users where the process software will be deployed are identified together with the addresses of the user client computers (block 1428). The process software is sent via e-mail to each of the users' client computers (block 1430). The users then receive the e-mail (block 1432) and then detach the process software from the e-mail to a directory on their client computers (block 1434). The user executes the program that installs the process software on his client computer (block 1422) then exits the process (terminator block 1424).
Lastly a determination is made as to whether the process software will be sent directly to user directories on their client computers (query block 1436). If so, the user directories are identified (block 1438). The process software is transferred directly to the user's client computer directory (block 1440). This can be done in several ways such as but not limited to sharing of the file system directories and then copying from the sender's file system to the recipient user's file system or alternatively using a transfer protocol such as File Transfer Protocol (FTP). The users access the directories on their client file systems in preparation for installing the process software (block 1442). The user executes the program that installs the process software on his client computer (block 1422) and then exits the process (terminator block 1424).
VPN Deployment
The present software can be deployed to third parties as part of a service wherein a third party VPN service is offered as a secure deployment vehicle or wherein a VPN is build on-demand as required for a specific deployment.
A virtual private network (VPN) is any combination of technologies that can be used to secure a connection through an otherwise unsecured or untrusted network. VPNs improve security and reduce operational costs. The VPN makes use of a public network, usually the Internet, to connect remote sites or users together. Instead of using a dedicated, real-world connection such as leased line, the VPN uses “virtual” connections routed through the Internet from the company's private network to the remote site or employee. Access to the software via a VPN can be provided as a service by specifically constructing the VPN for purposes of delivery or execution of the process software (i.e. the software resides elsewhere) wherein the lifetime of the VPN is limited to a given period of time or a given number of deployments based on an amount paid.
The process software may be deployed, accessed and executed through either a remote-access or a site-to-site VPN. When using the remote-access VPNs the process software is deployed, accessed and executed via the secure, encrypted connections between a company's private network and remote users through a third-party service provider. The enterprise service provider (ESP) sets a network access server (NAS) and provides the remote users with desktop client software for their computers. The telecommuters can then dial a toll-free number or attach directly via a cable or DSL modem to reach the NAS and use their VPN client software to access the corporate network and to access, download and execute the process software.
When using the site-to-site VPN, the process software is deployed, accessed and executed through the use of dedicated equipment and large-scale encryption that are used to connect a company's multiple fixed sites over a public network such as the Internet.
The process software is transported over the VPN via tunneling which is the process of placing an entire packet within another packet and sending it over a network. The protocol of the outer packet is understood by the network and both points, called tunnel interfaces, where the packet enters and exits the network.
Software Integration
The process software which consists of code for implementing the process described herein may be integrated into a client, server and network environment by providing for the process software to coexist with applications, operating systems and network operating systems software and then installing the process software on the clients and servers in the environment where the process software will function.
The first step is to identify any software on the clients and servers, including the network operating system where the process software will be deployed, that are required by the process software or that work in conjunction with the process software. This includes the network operating system that is software that enhances a basic operating system by adding networking features.
Next, the software applications and version numbers will be identified and compared to the list of software applications and version numbers that have been tested to work with the process software. Those software applications that are missing or that do not match the correct version will be upgraded with the correct version numbers. Program instructions that pass parameters from the process software to the software applications will be checked to ensure the parameter lists match the parameter lists required by the process software. Conversely parameters passed by the software applications to the process software will be checked to ensure the parameters match the parameters required by the process software. The client and server operating systems including the network operating systems will be identified and compared to the list of operating systems, version numbers and network software that have been tested to work with the process software. Those operating systems, version numbers and network software that do not match the list of tested operating systems and version numbers will be upgraded on the clients and servers to the required level.
After ensuring that the software, where the process software is to be deployed, is at the correct version level that has been tested to work with the process software, the integration is completed by installing the process software on the clients and servers.
On Demand
The process software is shared, simultaneously serving multiple customers in a flexible, automated fashion. It is standardized, requiring little customization and it is scalable, providing capacity on demand in a pay-as-you-go model.
The process software can be stored on a shared file system accessible from one or more servers. The process software is executed via transactions that contain data and server processing requests that use CPU units on the accessed server. CPU units are units of time such as minutes, seconds, hours on the central processor of the server. Additionally the accessed server may make requests of other servers that require CPU units. CPU units describe an example that represents but one measurement of use. Other measurements of use include but are not limited to network bandwidth, memory utilization, storage utilization, packet transfers, complete transactions etc.
When multiple customers use the same process software application, their transactions are differentiated by the parameters included in the transactions that identify the unique customer and the type of service for that customer. All of the CPU units and other measurements of use that are used for the services for each customer are recorded. When the number of transactions to any one server reaches a number that begins to affect the performance of that server, other servers are accessed to increase the capacity and to share the workload. Likewise when other measurements of use such as network bandwidth, memory utilization, storage utilization, etc. approach a capacity so as to affect performance, additional network bandwidth, memory utilization, storage etc. are added to share the workload.
The measurements of use used for each service and customer are sent to a collecting server that sums the measurements of use for each customer for each service that was processed anywhere in the network of servers that provide the shared execution of the process software. The summed measurements of use units are periodically multiplied by unit costs and the resulting total process software application service costs are alternatively sent to the customer and/or indicated on a web site accessed by the customer which then remits payment to the service provider.
In another embodiment, the service provider requests payment directly from a customer account at a banking or financial institution.
In another embodiment, if the service provider is also a customer of the customer that uses the process software application, the payment owed to the service provider is reconciled to the payment owed by the service provider to minimize the transfer of payments.
With reference now to
The server central processing unit (CPU) capacities in the On Demand environment are queried (block 1508). The CPU requirement of the transaction is estimated, then the server's available CPU capacity in the On Demand environment are compared to the transaction CPU requirement to see if there is sufficient CPU available capacity in any server to process the transaction (query block 1510). If there is not sufficient server CPU available capacity, then additional server CPU capacity is allocated to process the transaction (block 1512). If there was already sufficient available CPU capacity then the transaction is sent to a selected server (block 1514).
Before executing the transaction, a check is made of the remaining On Demand environment to determine if the environment has sufficient available capacity for processing the transaction. This environment capacity consists of such things as but not limited to network bandwidth, processor memory, storage etc. (block 1516). If there is not sufficient available capacity, then capacity will be added to the On Demand environment (block 1518). Next the required software to process the transaction is accessed, loaded into memory, then the transaction is executed (block 1520).
The usage measurements are recorded (block 1522). The utilization measurements consist of the portions of those functions in the On Demand environment that are used to process the transaction. The usage of such functions as, but not limited to, network bandwidth, processor memory, storage and CPU cycles are what is recorded. The usage measurements are summed, multiplied by unit costs and then recorded as a charge to the requesting customer (block 1524).
If the customer has requested that the On Demand costs be posted to a web site (query block 1526), then they are posted (block 1528). If the customer has requested that the On Demand costs be sent via e-mail to a customer address (query block 1530), then these costs are sent to the customer (block 1532). If the customer has requested that the On Demand costs be paid directly from a customer account (query block 1534), then payment is received directly from the customer account (block 1536). The On Demand process is then exited at terminator block 1538.
Open Marketplace for Distributed Service Arbitrage with Integrated Risk Management
As a globally distributed workforce becomes common, ability to modularize work and to source it from geographically-remote locations (e.g., software factories and their assembly lines and job shops, as described above) becomes important. In order to address this issue, this invention defines a computer-executed method and system for enabling a competitive marketplace which is built around two core concepts—1) providing a mechanism to compete for work by matching the provider's capabilities to the buyer's requirements, and 2) a fool-proof measurement system that grades providers on their ability to meet/exceed their commitments. Such a service delivery marketplace has three key players: a provider, a buyer and a marketplace enabler. The buyer (e.g., a customer who is buying software or software-based services) can use the marketplace to ascertain the risks that he is taking in sourcing from a particular provider. The provider (e.g., one or more software coders, a Service Oriented Architecture service provider, etc.) in turn gets the ability to price his services based on his prior record in delivering results. The marketplace enabler (e.g., a sales representative of the provider) can earn commissions through services such as: providing service level guarantees, service request validation and facilitating dynamic composition of work packets from multiple vendors to satisfy a complex work request.
A primary purpose of a service delivery marketplace is to enable managed delivery of services with a carefully crafted and monitored agreement between the buyer and the provider. In contrast to a marketplace for finished products, service delivery is inherently more challenging as it is difficult to capture the intent of the buyer when a service request is created. The service request should not only set forth the details of the work that is to be performed, but also should make a provision to clearly specify risk mitigation, change management, periodic reviews, documentation requirements and exit criteria in a clear fashion, in order to set the right expectations for both the buyer and the provider. For example, if a code development project being worked on by a provider is not progressing as per the agreed upon schedule, a risk mitigation activity may involve canceling the service agreement while paying the vendor a set amount for services already rendered. Unless such a risk mitigation activity is clearly spelled out during the creation of the service request, it may open up avenues for litigation.
In this context, a work packet is defined as an unambiguous definition of work to be performed by an assembly line or a job shop and includes: governance policies & procedures, standards, reused assets, requirements, task instructions, links/pointers to relevant knowledge bases, tooling/work execution environment, integration strategy, schedule, exit criteria, input/output work products and work transfer instructions. Predefined templates for work packets depending on the nature of the service to be performed, the scope of the work, delivery schedules, financing, etc., provide the first level of guarantees.
With reference now to
After initiator block 1608, a work packet (as defined and described above) is created (block 1610) according to criteria set by the buyer 1604. As described in block 1612, the work packet is then validated (e.g., checked to ensure that it can be properly handled by one or more of the design centers, assembly lines and job shops of the software factory) under the direction of the marketplace enabler 1606, which may be part of the client business governance board 106 described above in
Returning to block 1610, note that a work packet template repository 1622 is accessed in order to create the work packet (block 1610). This permits the re-use of work packets on different jobs. The marketplace incents the marketplace enabler to own such a work packet repository in order to capture and mine operational data that can be linked to a list of providers under contract. Such data will provide the marketplace enabler better estimation capabilities for performing the activities associated with the work packet as well as tracking the performance of various providers. Such capabilities can also provide value to the buyers in this marketplace.
Note also the block set 1624, which aids in the process of bidding/accepting, executing and delivering the work packet. That is, before the work packet is presented to the buyer 1604, the work packet is pre-screened (block 1626), in order to confirm that it meets the requirements of the buyer 1604 and the capacity/capability of the provider 1602. A risk analysis is performed on both the individual work packet (block 1628) and the overall project (block 1630) that the work packet will be used in. This risk analysis confirms that the work packet and project will not adversely affect the resources of the buyer 1604. For example, this risk analysis may confirm that the work packet and/or project will not expose the buyer's system to viruses, will not circumvent security measures found in the buyer's resources, etc. A rating and measurement service (block 1632) further confirms that the qualifications of the provider 1602 meet the requirements/demands of the buyer 1604. Billing processes for producing the work packet and project are set up (block 1634), and the work packet is fed to the design centers, assembly lines and job shops of the marketplace using appropriate work scheduling tools (block 1636). The provider's resources are further enabled (block 1638) to ensure that the work packets and/or final software product or service are properly delivered and supported.
A key challenge in service delivery is service request validation. That is, even if a service request is created from a prescriptive template, the level of detail may not be sufficient for a well defined agreement (e.g., a Service Level Agreement—SLA) that the buyer and the provider can rely on. In this case, the marketplace enabler may provide a value added service to validate a service request and, for a price, will take on the risk of any litigation which may arise from dissatisfied buyers.
With reference then to
Note that if the software factory (e.g., provider 1602 shown in
Note that services requested from and provided by the design centers, assembly lines and job shops of one or more Software Factories in the marketplace are seldom done in isolation. Rather, these services typically form a piece of a complex project or business activity that is key to the buyer's organization. In many cases, a buyer may source (request software and support services) from multiple vendors in the marketplace at the same time with complex dependencies in schedules and budgets. In this case, the marketplace enabler may provide the service of managing the orchestration of the transfer of work between the providers and obtaining guarantees from them on matching the schedules. Even in this case, risk mitigation activities such as replacing vendors may need to take place and need to be reflected in the initial service level agreements.
A concept that is key to the functioning of the marketplace is that of an ability to rate both the buyers and the providers of services. By their very nature, ranking service delivery is a complex task, and it may not be feasible to come up with a single indicator for the reliability and effectiveness of a provider. In this sense, a subjective rating provided by the buyer at the end of the task completion may be less valuable than a set of centrally collected and managed objective metrics on meeting various deadlines, budgets and quality reviews. Thus, managing the service delivery activities and logging metrics through a centralized marketplace portal throughout the delivery process is important. Providers have an incentive to use this portal, as these ratings are important in sustaining their long term viability in the marketplace.
As a service to the providers and buyers, the marketplace enabler can provide automation that generates notices about work packets that match the provider capabilities or buyer requirements based on pre-screening profile information.
Thus with reference now to
Thus, as described herein, the present invention provides a method, system, and computer-readable medium that support an open marketplace for distributed service arbitrage with an integrated risk management. Note that computer 1302 and/or Software Factory Program (SFP) 1348 described in
In a preferred embodiment, the software factory comprises operations that include: collecting a plurality of software artifacts that have been archived during an assembly of previous work packets; collecting a plurality of metrics that have been utilized during the assembly of previous work packets; receiving a definition of a template for a new work packet, wherein the template for the new work packet is created by a packet definition process that defines attributes that are needed in the new work packet; under a control of the packet definition process, selecting requisite software artifacts from the plurality of software artifacts; under the control of the packet definition process, selecting requisite metrics from the plurality of metrics; and sending the template, requisite software artifacts and requisite metrics to a packet assembly process, wherein the packet assembly process assembles, under the control of the template and the requisite metrics, the requisite software artifacts to create the new work packet. Preferably, these steps are performed in a software factory, which includes the components of a software factory governance section that evaluates the project proposal for acceptance by the software factory; a design center composed of a requirements analysis team and an architecture team, wherein the design center sections the project proposal into major functional areas that are to be handled by the requirements analysis team and the architecture team, and wherein the design center creates the work packets; and an assembly line that receives and executes the work packets to create the deliverable custom software.
In one embodiment, the design center includes: a requirements analysis team, wherein the requirements analysis team is responsible for determining system requirements for executing the deliverable custom software on the customer's system; and an architectural team, wherein the architectural team models the project proposal in accordance with customer constraints, and wherein the architectural team bundles the customer constraints together with the work packets for execution in the assembly line.
In one embodiment, the work packets include governance procedures, standards, reused assets, work packet instructions, integration strategy, schedules, exit criteria and artifact checklist templates for Input/Output routines.
The assembly line in the software factory may include software that automatically recognizes a project type for the project proposal, and wherein the assembly line assembles the work packets into the deliverable custom software in accordance with the project type that is recognized by the assembly line. In a preferred embodiment, the assembly line conducts an integration test, a system test, a system integration test and a performance test of the deliverable custom software, wherein the integration test tests the deliverable custom software for compatibility with the client's system, the system test checks the client's system to ensure that the client's system is operating properly, the system integration test tests for bugs that may arise when the deliverable custom software is integrated into the client's system, and the performance test tests the deliverable custom software for defects as it is executing in the client's system.
In one embodiment, the assembly line includes a published set of services and a published set of requirements for the assembly line, wherein the published set of services and the published set of requirements for the assembly line are published to the design center, and wherein the published set of services describes what assembly services for assembling work packets are offered by the assembly line, and wherein the published set of requirements describes what execution environment must be used by work packets that are provided by the design center for assembly in the assembly line.
While the present invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention. Furthermore, as used in the specification and the appended claims, the term “computer” or “system” or “computer system” or “computing device” includes any data processing system including, but not limited to, personal computers, servers, workstations, network computers, main frame computers, routers, switches, Personal Digital Assistants (PDA's), telephones, and any other system capable of processing, transmitting, receiving, capturing and/or storing data.
| Number | Name | Date | Kind |
|---|---|---|---|
| 7035809 | Miller et al. | Apr 2006 | B2 |
| 7062449 | Clark | Jun 2006 | B1 |
| 7139999 | Bowman-amuah | Nov 2006 | B2 |
| 7272575 | Vega | Sep 2007 | B2 |
| 20020029272 | Weller | Mar 2002 | A1 |
| 20020046157 | Solomon | Apr 2002 | A1 |
| 20020069079 | Vega | Jun 2002 | A1 |
| 20030093477 | Daimon | May 2003 | A1 |
| 20040030696 | Lechner | Feb 2004 | A1 |
| 20050015678 | Miller | Jan 2005 | A1 |
| 20050216882 | Sundararajan et al. | Sep 2005 | A1 |
| 20060064486 | Baron et al. | Mar 2006 | A1 |
| 20060069605 | Hatoun | Mar 2006 | A1 |
| 20070094256 | Hite et al. | Apr 2007 | A1 |
| 20070124231 | Ristock et al. | May 2007 | A1 |
| 20070198558 | Chen | Aug 2007 | A1 |
| 20090043631 | Finlayson et al. | Feb 2009 | A1 |
| 20090100406 | Greenfield et al. | Apr 2009 | A1 |
| 20090300577 | Bernardini et al. | Dec 2009 | A1 |
| 20090300586 | Bernardini et al. | Dec 2009 | A1 |
| 20100017782 | Chaar et al. | Jan 2010 | A1 |
| 20100023919 | Chaar et al. | Jan 2010 | A1 |
| 20100023920 | Chaar et al. | Jan 2010 | A1 |
| 20100023921 | Chaar et al. | Jan 2010 | A1 |
| 20100031090 | Bernardini et al. | Feb 2010 | A1 |
| 20100031226 | Chaar et al. | Feb 2010 | A1 |
| 20100031234 | Chaar et al. | Feb 2010 | A1 |
| 20100269087 | Kabra | Oct 2010 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20100023918 A1 | Jan 2010 | US |
