Gabriel Sánchez

WIDE-a distributed architecture for workflow management

This paper presents the distributed architecture of the WIDE workflow management system. We show how distribution and scalability are obtained by the use of a distributed object model, a client/server architecture, and a distributed workflow server architecture. Specific attention is paid to the extended transaction support and active rule support subarchitectures.

Database Support for Workflow Management

From the Publisher: nDatabase Support for Workflow Management: The WIDE Project presents the results of the ESPRIT WIDE project on advanced database support for workflow management. The book discusses the state of the art in combining database management and workflow management technology, especially in the areas of transaction and exception management. This technology is complemented with a high-level conceptual workflow model and associated workflow application design methodology. Database Support for Workflow Management: The WIDE Project serves as an excellent reference, and may be used for advanced courses on database and workflow management systems.

Conceptual Workflow Model

This chapter describes the conceptual workflow model of WIDE. The definition of the model has been guided by the need of providing high flexibility in the definition of processes, in the assignment of tasks to agents, and in the definition of the information items associated to the process. Particular attention has been paid to the workflow (WF) modularization and distribution problem, in order to be able to specify WF schemas at different levels of detail, and to be able to distribute the work among different locations. The most original aspects of the WIDE model, however, involve the transactional model and the support for exceptions.

The Wide Approach to Workflow Management

In this chapter, we introduce the WIDE project, the results of which are described in the sequel of this book. We begin with describing the goals, partners, and structure of the project in Section 2.2. Then we discuss the WIDE approach to extending database technology in Section 2.3. Section 2.4 presents the WIDE architecture, showing how the extended database technology has been coupled to the FORO workflow management system. Section 2.5 introduces the WIDE approach to workflow modeling and workflow application design.

Improving Reuse in Space (IRIS)

This paper presents some advanced results of the IRIS experiment (ESSI 10509). The main goal of this experiment is to study potential improvements of the normal software life cycle used in space projects, addressed to increase software reusability in this field without handicapping other essential quality factors.