© 1977 by British Computer Society
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Generating structured flow diagrams: the nature of unstructuredness
Department of Computer Science, Rhodes University, Grahamstown, South Africa
Various methods have been put forward by different authors for converting an unstructured flow diagram into an equivalent structured one. This paper examines the basic flow diagram sub-structures, the presence of which in a flow diagram causes the flow diagram to be unstructured, and proves that these are the only structures which lead to unstructuredness.
Received March 1975.
* Department of Computer Science, Rhodes University, Grahamstown 6140, South Africa