Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
1999-11-01
2002-07-02
Breene, John (Department: 2177)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000
Reexamination Certificate
active
06415297
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to the area of Workflow-Management-System (WFMS). More particularly, the invention relates to means for providing improved database support in a Workflow-Management-System (WFMS).
2. Prior Art
A new area of technology with increasing importance is the domain of Workflow-Management-Systems (WFMSs). WFMSs support the modeling and execution of business processes. Business processes control which piece of work of a network of pieces of work will be performed by whom and which resources are exploited for this work, i.e. a business process describes how an enterprise will achieve its business goals. The individual pieces of work might be distributed across a multitude of different computer systems connected by some type of network.
The process of designing, developing and manufacturing a new product and the process of changing or adapting an existing product presents many challenges to product managers and engineers to bring the product to market for the least cost and within schedule while maintaining or even increasing product quality. Many companies are realizing that the conventional product design process is not satisfactory to meet these needs. They require early involvement of manufacturing engineering, cost engineering, logistic planning, procurement, manufacturing, service and support with the design effort. Furthermore, they require planning and control of product data through design, release, and manufacturing.
The correct and efficient execution of business processes within a company, e.g. development of production processes, is of enormous importance for a company and has significant influence on company's overall success in the market place. Therefore, those processes have to be regarded similar as technology processes and have to be tested, optimized and monitored. The management of such processes is usually performed and supported by a computer based process or workflow management system.
In D. J. Spoon: “Project Management Environment”, IBM Technical Disclosure Bulletin, Vol. 32, No. 9A, February 1990, pages 250 to 254, a process management environment is described including an operating environment, data elements, and application functions and processes.
In R. T. Marshak: “IBM's FlowMark, Object-Oriented Workflow for Mission-Critical Applications”, Workgroup Computing Report (USA), Vol. 17, No. 5, 1994, page 3 to 13, the object character of IBM FlowMark as a client/server product built on a true object model that is targeted for mission-critical production process application development and deployment is described.
In H. A. Inniss and J. H. Sheridan: “Workflow Management Based on an Object-Oriented Paradigm”, IBM Technical Disclosure Bulletin, Vol. 37, No. 3, March 1994, page 185, other aspects of object-oriented modeling on customization and changes are described.
In F. Leymann and D. Roller: “Business Process Management with FlowMark”, Digest of papers, Cat. No. 94CH3414-0, Spring COMPCON 94, 1994, pages 230 to 234, the state-of-the-art computer process management tool IBM FlowMark is described. The meta model of IBM FlowMark is presented as well as the implementation of IBM FlowMark. The possibilities of IBM FlowMark for modeling of business processes as well as their execution are discussed. The product IBM FlowMark is available for different computer platforms and documentation for IBM FlowMark is available in every IBM branch.
In F. Leymann: “A meta model to support the modeling and execution of processes”, Proceedings of the 11
th
European Meeting on Cybernetics and System Research EMCR92, Vienna, Austria, Apr. 21 to 24, 1992, World Scientific 1992, pages 287 to 294, a meta model for controlling business processes is presented and discussed in detail.
The “IBM FlowMark for OS/2”, document number GH 19-8215-01, IBM Corporation, 1994, available in every IBM sales office, represents a typical modern, sophisticated, and powerful workflow management system. It supports the modeling of business processes as a network of activities; refer for instance to “Modeling Workflow”, document number SH 19-8241, IBM Corporation, 1996. As further information on Workflow Management Systems available in IBM sales offices one could mention: IBM MQSeries Concepts and Architecture, document number GH 12-6285; IBM MQseries Getting Started with Buildtime, document number SH 12-6286; IBM MQSeries Getting Started with Runtime, document number SH 12-6287. This network of activities, the process model, is constructed as a directed, acyclic, weighted, colored graph. The nodes of the graph represent the activities or workitems which are performed. The edges of the graph, the control connectors, describe the potential sequence of execution of the activities. Definition of the process graph is via the IBM FlowMark Definition Language (FDL) or the built-in graphical editor. The runtime component of the workflow manager interprets the process graph and distributes the execution of activities to the right person at the right place, e.g. by assigning tasks to a work list according to the respective person, wherein said work list is stored as digital data within said workflow or process management computer system.
In F. Leymann and W. Altenhuber: “Managing business processes as an information resource”, IBM Systems Journal, Vol. 32(2), 1994, the mathematical theory underlying the IBM FlowMark product is described.
In D. Roller: “Verifikation von Workflows in IBM FlowMark”, in J. Becker und G. Vossen (Hrsg.): “Geschaeftsprozessmodellierung und Workflows”, International Thompson Publishing, 1995, the requirement and possibility of the verification of workflows is described. Furthermore, the feature of graphical animation for verification of the process logic is presented as it is implemented within the IBM FlowMark product.
For implementing a computer based process management system, firstly the business processes have to be analyzed and, as the result of this analysis, a process model has to be constructed as a network of activities corresponding to the business process. In the IBM FlowMark product, the process models are not transformed into an executable. At run time, an instance of the process is created from the process model, called a process instance. This process instance is then interpreted dynamically by the IBM FlowMark product.
A user typically interacts with the workflow management system via a graphical end user that represents the tasks to be performed by the user as icons. Work for a particular task is started by the user by double-clicking on the appropriate icon which in turn starts the program implementing the activity.
Another area of technology is the technology of database management. Most workflow systems use a relational database to manage build-time information, like their process models, or run-time information, like the state of business processes. WFMSs do increase significantly in complexity and managed data: more and more business processes are being implemented within WFMSs resulting in significant larger numbers of process models to be handled by WFMSs; also the number of cooperating WFMSs, i.e. to the degree of distribution, is undergoing a dramatic increase; etc. To cope with this new challenges the interoperation of the WFMS and the underlying database management system (DBMS) have to be improved. Specific issues are the issues of concurrency, parallelism and availability.
Techniques, such as hotpooling and application server clustering, have been proposed to improve performance and availability. However, no approach has yet been proposed to improve via the interoperation of the WFMSs and the underlying data base management systems (DBMS). Moreover, the state of the art WFMSs are unable t reduce the conflict between the distributed approach of these WFMSs themselves and the central approach of the DBMS. This conflict even becomes more serious with increasing database sizes.
SUMMARY OF THE INVENTION
The present invention is based on the objective to improve the interoperation
Leymann Frank
Roller Dieter
Breene John
International Business Machines - Corporation
Le Debbie M
Zarick, Esq. Gail H.
LandOfFree
Parallel database support for workflow management systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Parallel database support for workflow management systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parallel database support for workflow management systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2912578