Semantic Structure Transition with Elapsed Time

To enable cooperative problem solving by people and com- puters it is necessary to share the transition of objects, because objects at a given time are the accumulation of their transitions. With this perspective, we defined seman- tic structure as the organization of problem-solving systems. Semantic structure transition with elapsed time reflects how and what knowledge is used to solve a problem. Based on this argument, we constructed two systems for a semantic structure. The first system was designed to construct and manage the semantic structure, and the second was designed to derive the semantic structure transitions.