关键词: 业务过程执行语言, Web本体描述语言, 语义标注, 语义消歧, Web服务本体描述语言, 工作流

Abstract: To improve the automation degree of distributed workflow execution, and to eliminate semantic heterogeneity existed in workflow model, an ontology-based semantic annotation approach to Business Process Execution Language (BPEL) was proposed. Firstly, the BPEL process tree and Web Ontology Language (OWL) domain ontology tree were set up. For each concept in BPEL, semantic similarity computation was conducted with all concepts in OWL domain ontology from three perspectives. The mappings were established between two concepts with maximum composite similarity. By this semantic disambiguation process, the semantic heterogeneity was therefore eliminated, and the semantic disambiguation tree was constructed in the end. Then, a set of mapping rules could be used to achieve the transformation from BPEL process semantic disambiguation tree to semantic workflow model described by Ontology Web Language for Service (OWL-S). Finally an application case was given to validate the proposed approach and evaluate the semantic disambiguation algorithm using the F1-measure.

Key words: business process execution language, web ontology language, semantic annotation, semantic disambiguation, web ontology language for service, workflow