Abstract
Web service composition is a challenging research issue. This paper presents an automatic Web service composition method that deals with both input/output compatibility and behavioral constraint compatibility of fuzzy semantic services. First, user input and output requirements are modeled as a set of facts and a goal statement in the Horn clauses, respectively. A service composition problem is transformed into a Horn clause logic reasoning problem. Next, a Fuzzy Predicate Petri Net (FPPN) is applied to model the Horn clause set, and T-invariant technique is used to determine the existence of composite services fulfilling the user input/output requirements. Then, two algorithms are presented to obtain the composite service satisfying behavioral constraints, as well as to construct an FPPN model that shows the calling order of the selected services.
Original language | English (US) |
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Article number | 6727441 |
Pages (from-to) | 680-689 |
Number of pages | 10 |
Journal | IEEE Transactions on Automation Science and Engineering |
Volume | 12 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1 2015 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering
Keywords
- Fuzzy predicate Petri nets (FPPN)
- Petri nets
- fuzzy semantic
- horn clause
- service composition
- service-oriented architecture