Chapter 14 safety and health management

Needs analysis, to understand the concept of needs analysis and requirements capture method 2, 3 understand the needs of modeling, structural analysis cases buying and selling system 1.1, the concept and meaning demand is to demand analysis of user requirements for functionality and performance of the software, the user is hope is what the software can do things, what kind of function is completed, to what performance. Needs analysis is important in the allocation of functions between software and computer systems design software bridge