中古 发表于 2025-3-25 07:19:12
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Correspondences and process structures,We need to create input file structures and output file structures so that our program can transform input to produce output. Most programs make use of at least two files: input and output. By merging the input data file structure and the output data file structure we are able to create a basic process structure for our program.Agronomy 发表于 2025-3-25 14:14:11
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Generating schematic logic,The process structure, together with the conditions and operations that have been allocated, is converted into schematic logic. Keywords are used to identify each of the constructs.强制令 发表于 2025-3-25 20:21:29
Producing code,The process structure diagram, with its conditions and operations, is converted into schematic logic. The schematic logic can be translated into a programming language, such as Pascal, C or COBOL.无动于衷 发表于 2025-3-26 01:32:05
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Dealing with multiple input files,All the programs considered so far have employed a single input file and a single output file. On certain occasions we may need to deal with the requirement to process multiple input files (for example, if we are merging two input files to produce a single output file). The JSP approach to program design allows us to deal with this eventuality.BROTH 发表于 2025-3-26 09:59:26
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Structure clashes and program inversion,is said to exist. This means that the input and output data structures cannot be merged to form a single process structure, and therefore another approach has to be found in order to solve the problem.Nefarious 发表于 2025-3-26 19:19:07
Introduction,ram design methodology (such as Jackson Structured Programming) are to produce correct software to carry out a given task and to achieve user satisfaction with the software that has been designed for that purpose. We must also consider that there may be changes over time: the user requirements, or t