Datenflussdiagramms
A Datenflussdiagramm, or Data Flow Diagram (DFD), is a graphical representation of the flow of data within a system. It is a key tool in systems analysis and design, used to model the flow of data from inputs to outputs, and to identify the processes that transform the data. DFDs are part of the structured analysis and design technique (SADT) and are widely used in software engineering and information systems.
A DFD typically consists of four types of elements: data flows, processes, data stores, and external entities.
DFDs can be created at different levels of abstraction, with Level 0 providing a high-level overview of
DFDs are valuable for several reasons. They help in understanding the requirements of a system, identifying
In summary, a Datenflussdiagramm is a powerful tool for visualizing and analyzing the flow of data within