One design element ... and the system is in use, any device updates that could later the data flow should be subject to an appropriate controlled change. A data-flow diagram is the best way ...

Emphasis on tools and techniques that analyst can use to document information systems. Current, classical and structured tools for describing data flow, data structure, process flow, file design, ...

Though often used during the development of a new software system to aid in analysis and planning, data flow diagrams ... any existing diagrams. Jillian Koskie is an experienced software developer, ...