Abstract: The present paper deals with the problems of embedded workflow component in the aspects of process modeling , event driven mechanism , multiple application integration etc. A workflow model is proposed. The static model the describes the static element of the system (such as data , activity , organization ) , it is a relatively steady part in WFMS. The dynamic model describes the dynamic characteristic of the system (such as data flowing , control flowing , element relation and constraint , etc.) , it is often involved in business process optimization and reengineering. The workflow specification language is given , it formalizes the workflow model.

Key words: workflow, database, embedded, event driven, business process modeling