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Process Fragment

by Olha Danylevych last modified Apr 26, 2012 12:14
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Definitions

Term:
Process Fragment
Domain: Cross-cutting issues
Engineering and Design
(KM-ED)
Adaptation and Monitoring
(KM-AM)
Quality Definition, Negotiation and Assurance
(KM-QA)
Generic
(domain independent)
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Business Process Management
(KM-BPM)




Service Composition and Coordination
(KM-SC)

Process fragments can be used for runtime adaptation of compositions instances. Thereby, fragments of the original (running) composition are substituted for seperately modeled process fragments (which have e.g. different QoS characteristics). [Leitner et al., 2010)

A process fragment is a connected sub graph of a control/data flow graph of the process model. It can also contain additional artefacts, such as variables, references to related process-partners, annotations etc. Some parts of a fragment may be explicitly stated as opaque, in order to mark points of variability and degree of freedom for reuse. Process fragment is not necessarily directly executable. [COMPAS]
__ALT__
A process fragment is a fragmentary ’local’ building block, representing incomplete ’local’ knowledge, which can be composed with other fragments to build a complete and correct process model. [Eberle & Unger & Leymann, 2009]
{SYN: Composition Fragment}
Service Infrastructure
(KM-SI)




Generic
(domain independent)




 

Competencies

 

References

  • [COMPAS] Glossary. Visited: 20.02.2009. http://www.compas-ict.eu/terminology.php
  • [Eberle & Unger & Leymann, 2009] Hanna Eberle, Tobias Unger, Frank Leymann, "Process Fragments", Lecture Notes in Computer Science volume 5870 pages 398 - 405, 2009.
  • [Leitner et al., 2010] Philipp Leitner, Branimir Wetzstein, Dimka Karastoyanova, Waldemar Hummer, Schahram Dustdar, Frank Leymann: "Preventing SLA Violations in Service Compositions Using Aspect-Based Fragment Substitution, Proceedings of the International Conference on Service-Oriented Computing (ICSOC) , 2010.

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