David Higgins is a consultant and an author of five books on various aspects of software engineering. His first book, Program Design and Construction , was published in 1979 and was perhaps the first on developing quality software for personal computers. As a consultant, he has advised many top organizations in both the public and private sector on technology planning and implementation. In the last few years, he has been specializing in knowledge management issues and strategic technology planning. He can be reached at dave at davehigginsconsulting.com.