This paper proposes an approach for reusing design methods from past d
esigns for solving new problems. This is an application of case-based
reasoning to design. The proposed approach is implemented as a prototy
pe system called CADREM. CADREM has been tried in the domain of concep
tual structural design of buildings. First, a description of case-base
d reasoning is given followed by its application in design. Then follo
ws a description of the proposed approach and CADREM. Sample outputs f
rom CADREM are also included.