Workflow Management Systems and Interoperability

METUFIow.- 10.1 Concurrency Control in METUFIow.- 10.2 Future Considerations for Concurrency Control in METUFIow.- 11. Conclusions.- HP Workflow Research: Past, Present, and Future.- 1. Introduction.- 2. Stage 1: Advanced Feature Enhancements.- 3. Stage 2: Enterprise Business Process Management System.- 3.1 The Requirements.- 3.2 OpenPM Overview.- 3.3 OpenPM Application Development Facilities.- 3.4 An Application Example.- 4. Stage 3: Internet-Based Service Process Management System.- 4.1 FlowJet Overview.- Reducing Escalation-Related Costs in WFMSs.- 1. Introduction.- 2. System Model.- 2.1 Workflow Schema.- 2.2 Deadlines and Escalations.- 2.3 Assumptions.- 3. Dynamic Deadline Adjustment (DDA).- 4. Preemptive Escalation.- 5. Experimental Evaluation.- 5.1 Simulation Model.- 5.2 Experimental Setup.- 5.3 Simulation Results.- 6. Related Work.- 7. Conclusions.- The Workflow Management System Panta Rhei.- 1. Introduction.- 2. The Concepts of Panta Rhei.- 2.1 Classification of Workflows.- 2.2 Basic Concepts.- 2.3 Additional Features.- 2.4 Open Architecture.- 3. Workflow Description Language.- 3.1 Workflow Specification.- 3.2 Execution of WDL.- 4. Architecture and Implementation.- 5. Conclusions.- The WASA Approach to Workflow Management for Scientific Applications.- 1. Introduction.- 2. Workflow Modeling.- 2.1 Workflow Modeling in Business Applications.- 2.2 Workflow Modeling in Scientific Applications.- 2.3 Case Study: Scientific Workflows in Molecular Biology.- 3. Dynamic Change Operations.- 3.1 Anticipated Dynamic Change.- 3.2 Ad-hoc Dynamic Change.- 3.3 Related Work on Dynamic Change.- 4. The WASA Architecture.- 4.1 The WASA Layers.- 5. The WASA Prototype.- 5.1 General Considerations.- 5.2 System Architecture.- 6. Conclusions and Future Work.- Security Enforcement in Activity Management Systems.- 1. Introduction.- 1.1 Related Work.- 2. Secure CapBasED-AMS.- 2.1 Architecture of Secure CapBasED-AMS.- 3. Security Requirements for Activity Specification and Decomposition.- 3.1 Security Control in Activity Specification.- 3.2 Security Constraints Specification.- 4. Framework for Activity Execution.- 4.1 Activity Graph.- 4.2 ECA Rules.- 4.3 Activity Coordinator.- 4.4 Communication Between the Activity Coordinator and PSAs.- 4.5 Task and Event Logging.- 4.6 Exception Condition Handling and Error Recovery.- 5. Security Enforcement During Task Execution.- 5.1 Security Policy Decider and Secure PSA.- 5.2 Enforcement of Task Oriented Modeling of Security.- 6. Open Problems and Summary.- Towards a Platform for Distributed Application Development.- 1. Introduction.- 2. Motivation.- 2.1 Application Example.- 2.2 Software Solutions.- 2.3 Kernel Functionality for Distributed Systems.- 3. The OPERA Kernel.- 3.1 Architecture.- 3.2 Process Management: Model.- 3.3 Transactional Execution Guarantees.- 3.4 Availability and Scalability.- 3.5 Externalized Database Functionality.- 4. Application Examples.- 4.1 High-Level Object Management (HLOM).- 4.2 Distributed Object Management (DOM).- 5. Conclusions.- The Integration of Workflow Systems and Collaboration Tools.- 1. Introduction.- 2. Concerns and Theoretical Foundations.- 2.1 Coordination Versus Collaboration.- 2.2 The Situated Nature of Work.- 2.3 Organizational Structures and Flows.- 2.4 Empirical Evidence.- 3. Orchestra: a Testbed Environment.- 3.1 Objectives.- 3.2 Participants and Activities.- 4. Workflow Systems and Technology.- 4.1 A Sample of Workflow Systems.- 4.2 Groupware Environments and Workflow Support Mechanisms.- 4.3 Workflow Modeling Approaches.- 4.4 The Workflow Management Coalition.- 5. Collaboration Approaches and Technologies.- 5.1 Collaboration Technology.- 5.2 Techniques for Group Decision and Collaboration.- 5.3 Decision Models.- 6. The Integrative Approaches.- 6.1 Identifying Exceptions.- 6.2 Collaboration as a Handler for Coordination Problems.- 6.3 Beyond Exceptions.- 7. Conclusions.- Interoperability in Large-Scale Distributed Information Delivery Systems.- 1. Introduction.- 2. Architectural Issues.- 2.1 Multidatabase-Based Paradigm.- 2.2 Mediator-Based Paradigm.- 3. Technical Issues.- 3.1 Data Delivery Protocols.- 3.2 Data Delivery Modes.- 3.3 Data Delivery Frequency.- 3.4 General Remarks.- 4. Overview of Some Existing Projects.- 4.1 Broadcast Disks Approach to Information Dissemination.- 4.2 Carnot.- 4.3 DIOM.- 4.4 DISCO.- 4.5 InfoSleuth.- 4.6 MIND.- 4.7 TSIMMIS.- 4.8 Comparison with Respect to Data Delivery Capabilities.- 5. Enabling Technology for Interoperability.- 5.1 CORBA.- 5.2 COM/OLE.- 6. AURORA and its Application to Electronic Commerce.- 6.1 A Motivating Example:Virtual Catalogs in Electronic Commerce.- 6.2 Homogenization and Integration Mediators:A 2-tier Mediation Model.- 6.3 AURORA Mediators as Distributed Components.- 6.4 AURORA Mediator Development Workbench.- 6.5 Homogenization Mediators.- 6.6 AURORA Integration Mediators.- 6.7 Constructing Virtual Catalogs with AURORA.- 7. Conclusion.- Enterprise-Wide Workflow Management Based on State and Activity Charts.- 1. Introduction.- 2. Requirements on Workflow Specification Methods.- 3. Formal Methods for Workflow Specification.- 4. Workflow Specification with State and Activity Charts.- 4.1 Introduction to State and Activity Charts.- 4.2 Design Methodology for Workflow Specifications.- 5. Utilizing Tools for Formal Verification.- 5.1 Workflow Properties.- 5.2 Specification of Workflow Properties.- 5.3 Model Checking.- 6. Distributed Workflow Execution.- 6.1 Partitioning of State and Activity Charts.- 6.2 Correctness of the Partitioning.- 6.3 Synchronization.- 6.4 Fault Tolerance.- 7. Conclusions.- Transactional Support for Cooperative Applications.- 1. Introduction.- 2. Transactional Support for Cooperative Applications.- 2.1 Characteristics of Cooperative Applications.- 2.2 Motivating Example.- 2.3 Requirements for a Cooperative Transaction Model.- 2.4 Approaches to Support Cooperative Work.- 3. Towards a Cooperative Transaction Model.- 3.1 Semantics-Based Approaches.- 3.2 Check-out/Check-in, Versioning, and Workspaces.- 3.3 Split/Join Transactions and Delegation.- 3.4 Group-Oriented Approaches and Transactional Workflow.- 4. The TRANSCOOP Approach.- 4.1 Overview of the COACT Transaction Model.- 4.2 Formalization of the COACT Transaction Model.- 4.3 Example of History Merging.- 4.4 Organizing the Work Process.- 4.5 Prototype Implementation.- 4.6 Discussion and Relationship to Other Transaction Models.- 5. Conclusions.- Migrating Workflows.- 1. Introduction.- 2. Migrating Workflow Model.- 3. Migrating Workflow - An Example.- 4. Enactment Mechanisms for the Migrating Workflows.- 4.1 Execution System Guarantees.- 4.2 Architectural Considerations.- 4.3 Security Considerations.- 4.4 User Interfaces.- 4.5 Networking Infrastructure.- 5. Workflow Administration Issues.- 5.1 Process Modeling.- 5.2 Workflow Specification.- 5.3 Administration of Migrating Workflows.- 6. Discussion and Summary.- Technology and Tools for Comprehensive Business Process Lifecycle Management.- 1. Introduction.- 2. Characterizing Business Processes.- 3. Traditional Business Process Lifecycle Management.- 3.1 Capturing Process Definition.- 3.2 Reengineering a Process.- 3.3 Implementing a Process.- 3.4 Performing Continuous Process Improvement.- 4. Technology and Tools for Business Process Lifecycle Management.- 4.1 Business Process Modeling Technology and Tools.- 4.2 Workflow Management Technology and Systems.- 4.3 Interoperability Between BPMTs and WFMSs.- 5. Role of BPMT and WFMS Technology.- in the Business Process Lifecycle.- 5.1 Capturing Process Definition.- 5.2 Reengineering a Process.- 5.3 Implementing a Process.- 5.4 Performing Continuous Process Improvement.- 6. Evaluation of Current Business Process Modeling Technology.- 6.1 Business Process Models and Methodologies.- 6.2 Business Process Analysis.- 6.3 Business Process Simulation.- 6.4 Business Process Evaluation Reports and Documentation.- 7. Evaluation of Current Workflow Management Technology.- 7.1 Workflow Model.- 7.2 Dataflow.- 7.3 Workflow Process Definition Tools.- 7.4 Analysis, Simulation, and Animation Tools.- 7.5 Workflow Monitoring and Tracking Tools.- 7.6 Basic WFMS Infrastructure: Architecture, GUIs, and APIs.- 7.7 Advanced WFMS Infrastructure:Distribution, Scalability, and Component Redundancy.- 7.8 Interoperability Among WFMSs and Heterogeneous Applications.- 7.9 Concurrency Control, Recovery, and Advanced Transactions.- 8. Evaluation of Current BPMTs and WFMSs Integration.- 8.1 Loose Integration.- 8.2 Tight Integration.- 8.3 Reverse Integration.- 9. Critical Success Factors and Conclusion.- Recent Trends in Workflow Management Products, Standards and Research.- 1. Introduction.- 2. Market Trends and Business Considerations.- 3. Workflow Standards.- 4. Technical Trends.- 5. Research Projects.- 6. Conclusions.- Kerem - Reasoning About the Design of Partially Cooperative Systems.- 1. Introduction and Motivation.- 1.1 Partially Cooperative Systems.- 1.2 The Need for Reasoning.- 1.3 Outline.- 2. The Modeling Tool.- 2.1 The Basic Primitives.- 2.2 The Event Perspective.- 2.3 The Task Perspective.- 2.4 The Entity Perspective.- 2.5 The Actor Perspective.- 2.6 An Example.- 3. Reasoning About a Design Model.- 3.1 Diagnostics.- 3.2 Change Evaluation.- 3.3 Query System.- 4. Conclusion.- 4.1 Related Work.- 4.2 Concluding Remarks.- Workflow Technologies Meet the Internet.- 1. Introduction.- 2. Open Workflow Clients.- 3. Workflow Component Servers.- 4. A Transactional Model for Cooperative Business Processes.- 5. Conclusions.- Workflow Reuse and Semantic Interoperation Issues.- 1. Introduction.- 2. Related Research and Technological Developments.- 3. Conventional Versus Component-Based Information Systems Development Life Cycles.- 4. Semantic Interoperation Reasoning Approach.- 4.1 The SIR Framework Models.- 4.2 Design with Reuse.- 5. Specification Refinement.- 6. Type Specification Reuse and Compositions.- 6.1 Most Common Reduct.- 6.2 Process of Common Reduct Detection.- 6.3 Construction of Concretizing Types and Views.- 7. Ontological Relevance of Specifications.- 7.1 Tight Ontological Relevance.- 7.2 Loose Ontological Relevance.- 8. A Uniform Script-Based Multiactivity Framework.- 8.1 An Overview of the Relevant SYNTHESIS Language Features.- 8.2 Script Types.- 8.3 Capabilities of the Canonical Model.- 8.4 An Example of a Funding Agency Multiactivity Specification.- 8.5 Pre-existing Workflow Specifications.- 9. Workflow Design with Reuse.- 9.1 An Introduction into the Basic Process Algebra with Iteration.- 9.2 Script Processes.- 9.3 Refinement of Scripts.- 9.4 Script Type Reducts.- 9.5 Process of a Script Design with Reuse.- 9.6 Example of the Most Common Reduct Identification.- 10. Conclusion.- A. Definition of a Script Type.- B. Interpretation of Stallware in the Canonical Workflow Model.- C. Interpretation of IBM FlowMark in the Canonical Workflow Model.- References.