Making Argumentation Serve Design

Documenting argumentation (i.e., design rationale) has great potential for serving design. Despite this potential benefit, our analysis of Horst Rittel's and Donald Schon's design theories and our own experience has shown that there are the following fundamental obstacles to the effective documentation and use of design rationale: (a) A rationale representation scheme must be found that organizes information according to its relevance to the task at hand; (b) computer support is needed to reduce the burden of recording and using rationale; (c) argumentative and constructive design activities must be explicitly linked by integrated design environments; and(d) design rationale must be reusable. In this chapter, we present the evolution of our conceptual frameworks and systems toward integrated design environments, describe a prototype of an integrated design environment including its underlying architecture, and discuss some current and future work on extending it.