Warnier-Orr Diagrams are very powerful design tools and offer some distinct advantages to system experts. They are quite simple in appearance and easy to understand. Also known as logical construction of programs/logical construction of systems are powerful tools aimed at designed of program structures. The simple graphic methods used in Warnier/Orr diagrams make the levels in the system evident and movement of the data between them vivid.
Warnier/Orr diagrams clearly show the various processes and sequences in which they are performed. Each process is defined in a hierarchical way. At each level the process is shown in a bracket below that groups its components. Brackets denote set and subsets. Iteration structure is depicted by a parenthesis to the left of the series of elements to be repeate. A number inside the parentheses indicates the amount of times the iteration should be performed.
Warnier/Orr diagrams clearly show the various processes and sequences in which they are performed. Each process is defined in a hierarchical way. At each level the process is shown in a bracket below that groups its components. Brackets denote set and subsets. Iteration structure is depicted by a parenthesis to the left of the series of elements to be repeate. A number inside the parentheses indicates the amount of times the iteration should be performed.
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