AT&T - Bell Laboratories 6200 E. Broad St. - Rm. 2B253 Columbus, OH 43213, U.S.A.
Department of Computer Science, Case Western Reserve University, Cleveland, OH., 44106, U.S.A.
The main reason for this disparity is that Bridge cannot be solved using a standard knowledge-based problem solving technique such as heuristic search, production rules, or means-end analysis.
The success of BASSINET is primarily due to its use of ASPEN, a structured approach for integrating multiple problem solving techniques in complex, knowledge based systems. ASPEN proposes that programs should be decomposed into five consecutive, well integrated stages: Abstraction, Synthesis, Planning, Execution and moNitoring. Each stage may use the knowledge representation and problem solving technique that is best suited to the problem domain. The interaction between the stages is through knowledge representation transformations and feedback.
This paper presents BASSINET and its use of ASPEN.