Introduction - If you have any usage issues, please Google them yourself
This book tells the software development a critical issue- the software needs of the problem. Software developers and users of information communication tends to be neglected, leading software development out, can not meet the needs of users. The rework is not only technically for developers to bring great trouble, and software performance and caused by the impact of human and material waste. So early in the development cycle, needs analysis to improve project quality, reduce duplication of work, by controlling the expansion of project scope and needs to change to achieve the target as planned in China software industry is currently pressing problems- and this is the main content of this book .