In the past two decades there has been a continuous change in the software development. Organizations use different programming languages for developing different software applications. The applications which were developed earlier were based on procedural programming languages like ‘C’, FORTRAN, COBOL etc. The applications which are being developed now, may be based on object oriented languages or procedural languages or a mix of both. In order to understand how the information system is designed one may need to understand the behavior of the program. The behavior of the program can be understood with the help of design information. This design information about the application program can be abstracted the from data flow diagram.
In this paper we are proposing a methodology to abstract the behavior of the program and then representing this behavior in the form of a data flow diagram through a series of steps.
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