To appear in Proceedings for Third Congress on Design Computing American Society of Civil Engineers, June 1996, Anaheim Structuring cases in a case-based design aid

Architectural designers use a wide variety of reasoning and decision-making aids such as rules, prototypes and specific examples. In this paper we discuss how we have structured cases in a case-based design aid called ARCHIE to allow designers to navigate through the database in a flexible manner yet maintain links between general statements and specific examples. In particular, we focus on the way in which design problems are structured, aimed at helping both novice and experienced designers recognize tacit knowledge.