Workflow modelling in flexible based environments

Workflows are activities involving the coordinated execution of multiple tasks performed by entities, in the enterprise environment. Workflow systems support the encoding and execution of workflows. A workflow management system is proposed, in which a considerable attention is paid on the utilisation of the services of a flexible database formalism. Flexible database formalisms must permit the modelling of trends, seasonality (periodicity), cyclic variations of trends and irregular activities (no predictable patterns) in the enterprise environment Furthermore, the formalism must permit the, expression of enterprise concepts founded in various conceptual levels. This paper will be restricted in workflow management system design, and activity scheduling, in a post relational environment whereas relational operators utilise paths (links between domains), in order to express interdependencies between activities