Title:   Exception Handling in Workflow-Driven Web Applications
Speaker: Marco Brambilla (Politecnico di Milano)

Abstract:

As the Web becomes a platform for implementing B2B applications, the need
arises of Web conceptual models for describing Web oriented workflow
applications implementing business processes. In this context, new problems
about process correctness arise, due to the loose control of Web
applications upon the behavior of their Web clients. Indeed, incoherent
user's behavior can lead to inconsistent processes. This talk presents a
high level Web application design model (WebML), and an approach to
workflow modeling and to the management of exceptions that occur during
the execution of processes on the Web. In particular, I present a
classification of exceptions, and recovery policies to retrieve coherent
workflow status and data after an exception, and finally some experiences
with the realization of these concepts in WebML.