Workflow Meta-Model Extension for Pervasive Computing Environment

Along with the rapid development of the pervasive computing and the SOA technology, the limitation of the traditional workflow modeling mechanisms is increasingly obvious in the aspects of supporting rules defining, resource using on demand and transparent accessing, goal-driven automatic composition of services etc. To adapt the request of the pervasion computing, for example environment perception, resource transparent accessing, application integration seamless, this paper extends the WFMC workflow process meta-model based on ontology and Web service techniques. By adding goal definition of working task, using rules for Web services, uniform abstract and definition mechanisms for application resource and physical resource, skill and knowledge demand for executive role, it provides modeling support for intellectualized and larger-granularity workflow activity definition. Sequentially, adapting various practical situations that possibility presences in the pervasive environment, this paper provides model support for resource automatic identification and dynamic binding, goal-driven dynamic composition of various computing services and intellectualized execution of workflow model defined.