What is Data Flow Diagram?

What is Data Flow Diagram?

Data Flow diagram is basically a modeling notation that represents a functional decomposition of a system. 

Data flow diagrams as used in Structured Analysis, based on an abstract model for data flow transformations. The semantics consists of a collection of VDM functions, transforming an abstract syntax representation of a data flow diagram into an abstract syntax representation of a VDM specification.

Since this transformation is executable, it becomes possible to provide a software analyst/designer with two \'views\' of the system being modeled: a graphical view in terms of a data flow diagram, and a textual view in terms of a VDM specification.

In this paper emphasis is on the motivation for the choices made in the transformation.

By:UMANG
Date:2023-01-09 00:00:00

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