Design of Visual Edit Tool for DFD Based on UML
Weijing Wang · Computer Technology and Development · 2012
DFD visual editing tool SECAI is a software for traditional data-flow oriented requirement analysis.Because SECAI is designed for drawing DFD and making data dictionary as requirement analysis result,the main functions of SECAI include drawing hierarchical data flow diagram,remaining the consistency of data flow,recording external entities,recording processes,recording data flows,recording data stores and building data dictionaries according to information recorded automatically.In this article,describe the procedure of system design by UML notations,and give a running image of this system.