Temporal extension of workflow meta-model and its application

Abstract

The current researches on time constraints in workflow mainly focus on time-relevant process modeling and efflciency analysis. Through modifiing the WfMC 3 Basic Process Definition Meta-model, this paper introduces time into workflow as a dimension, and presents a concept Temporal Workjlow. Then, some primary elements in workjlow are formalized, and an example is given to show the application of temporal injbmation and temporal data calculation in workjlow system. 0-7803-7941-1/03/$17.0002003 IEEE.