Layout algorithms for DFD processors

Abstract

This paper presents two algorithms that are useful for integration into CASE tools that support data flow diagrams. They provide the means to relieve the user of the tedious task of making layout decisions by automating some of these decisions. The automatic layout algorithm yields to achieve a neat layout of the objects in a data flow diagram. The incremental placement algorithm adopts the layout algorithm and finds its place in application like the replacement of a process object in a diagram with its child diagram.