Download or read book Flexible Software Design written by Bruce Johnson and published by CRC Press. This book was released on 2005-06-17 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: A developer's knowledge of a computing system's requirements is necessarily imperfect because organizations change. Many requirements lie in the future and are unknowable at the time the system is designed and built. To avoid burdensome maintenance costs developers must therefore rely on a system's ability to change gracefully-its flexibility. Flex