Sidney C. Bailin is founder and president of Knowledge Evolution, Inc. Previously, he was a vice president of engineering at Computer Technology Associates, where he played a leading role in that company's software technology program. Dr. Bailin's 22 years of software experience ranges from the development of production real-time communications systems to R & D in information agents. He has been active in the software reuse community for the past 14 years, and is best known in that community for introducing the KAPTUR methodology, which links reuse to rationale capture.