Citation
Abstract
This article proposes a “global” readability standard for flow charts in DSN software implementations. The standard limits the kinds of closures and returns that can occur from decision nodes. It is proved that the standard is equivalent to permitting only those flow charts that are constructible from hierarchical expansion of the three structures BLOCK, IFTHENELSE, and LOOPREPEAT. The LOOPREPEAT structure is the simultaneous generalization of DOWHILE and DOUNTIL. Considerations of code as opposed to flow chart readability, however, may rule out the use of LOOPREPEAT in favor of allowing only its special cases DOWHILE and DOUNTIL.
Details
- Volume
- 42-26
- Published
- April 15, 1975
- Pages
- 196–201
- File Size
- 546.0 KB