Approach and Refinement Strategies for Flexible Choreography Enactment
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- 作者：Andreas Wei脽 (23)
Santiago G贸mez S谩ez (23)
Michael Hahn (23)
Dimka Karastoyanova (23) - 关键词：Process Flexibility ; Choreography Flexibility ; Refinement Strategies ; Late Modeling ; Late Selection ; Process Fragments
- 刊名：Lecture Notes in Computer Science
- 出版年：2014
- 出版时间：2014
- 年：2014
- 卷：8841
- 期：1
- 页码：93-111
- 全文大小：806 KB
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Santiago G贸mez S谩ez (23)
Michael Hahn (23)
Dimka Karastoyanova (23)
23. Institute of Architecture of Application Systems (IAAS), University of Stuttgart, Stuttgart, Germany - ISSN：1611-3349
文摘
Collaborative, Dynamic & Complex (CDC) systems such as adaptive pervasive systems, eScience applications, and complex business systems inherently require modeling and run time flexibility. Since domain problems in CDC systems are expressed as service choreographies and enacted by service orchestrations, we propose an approach introducing placeholder modeling constructs usable both on the level of choreographies and orchestrations, and a classification of strategies for their refinement to executable workflows. These abstract modeling constructs allow deferring the modeling decisions to later points in the life cycle of choreographies. This supports run time scenarios such as incorporating new participants into a choreography after its enactment has started or enhancing the process logic of some of the participants. We provide a prototypical implementation of the approach and evaluate it by means of a case study.