Uml-Based Representational Re-Description of Concept Development

Knowledge-based problem solving requires a conceptual system that is comparatively rich and complete, especially when the problem is domain unrestrictive. The methods about knowledge acquisition, representation and usage in classical Knowledge Engineering can only adapt themselves to domain restricted problems. This is because it doesn´t take a developmental view to construct conceptual system and consequently it is confronted with Framework Problem. In Cognitive Psychology, the study of conceptual system has an in-depth cognitive investigate on issues of development and representation. However, there lack investigations on the details of system construction and realization. Based on the theory of Developmental Psychology, this paper proposes an object-based representation method for conceptual system, focusing on the representation and development of concepts on four levels: Implicit (I), Explicit 1 (E1), Explicit 2 (E2) and Explicit 3 (E3) representations. It will contribute well to the adaptability and flexibility in the reasoning and problem solving of knowledge-based systems.