Data flow diagrams can provide a clear method for describing systems and for establishing agreement on the basis of these ... At this level, the proposed system is seen as a way of providing information that will help management fill its rooms more completely and effectively. Thus, the business objective is to fill hotel rooms , not to generate 38 Part 1 Information Systems: Basic Development Concepts.
|Title||:||Structured systems development|
|Author||:||Michael J. Powers, Paul Henry Cheney, Galen B. Crow|
|Publisher||:||Boyd & Fraser Pub Co - 1990|