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Categorization and Optimization of Synchronization Dependencies in Business Processes

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4 Author(s)
Qinyi Wu ; Coll. of Comput., Gatech, USA ; Pu, C. ; Sahai, A. ; Barga, R.

The current approach for modeling synchronization in business processes relies on sequencing constructs, such as sequence, parallel etc. However, sequencing constructs obfuscate the true source of dependencies in a business process. Moreover, because of the nested structure and scattered code that results from using sequencing constructs, it is hard to add or delete additional constraints without over-specifying necessary constraints or invalidating existing ones. We propose a dataflow programming approach in which dependencies are explicitly modeled to guide activity scheduling. We first give a systematic categorization of dependencies: data, control, service and cooperation. Each dimension models dependency from its own point of view. Then we show that dependencies of various kinds can be first merged and then optimized to generate a minimal dependency set, which guarantees high concurrency and minimal maintenance cost for process execution.

Published in:

Data Engineering, 2007. ICDE 2007. IEEE 23rd International Conference on

Date of Conference:

15-20 April 2007