Abstract:

We extended the concept of flow fragment and proposed three types of flow fragment groups. Moreover, the concepts of phenomenon and goal were described and the phenomenonbased indistinguishable flow fragments (or flow fragment groups) were defined. We constructed the mapping relationship between the sets of flow fragments and of phenomenons, as well as between the sets of phenomena and of goals. The hierarchical process of the set of flow fragments, based on multiple knowledge, was formally described. This can provide the sharable and reusable knowledge database and the transformation mechanism for the hierarchical abstraction process of physical world.

Key words: G-KRA model, multiple hierarchical abstraction, flow fragment, flow fragment group, phenomenonbased indistinguishable