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1.It determine the information received during the analysis phase and then organize that information in order to reduce complexity.
2.It provide the graphical representation of the information in order to provide simplicity.
Wiki User
∙ 11y ago
The principles of structured analysis involve breaking down a system into smaller, more manageable components, identifying the relationships and interactions between these components, and creating a visual representation of the system using tools like data flow diagrams. The focus is on understanding the system's functions, processes, and data flow to facilitate effective design and development. Additionally, structured analysis emphasizes the importance of clear and unambiguous requirements gathering to ensure the development of a successful system.
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What is structured analysis all about?
Structured analysis is a set of techniques and graphical tools used by the analyst for applying a systematic approach to systems analysis. The traditional approach focuses on cost/benefit and feasibility analyses, project management, hardware and software selection, and personnel considerations. In contrast, structured analysis uses graphical tools such as Data Flow diagram, data dictionary, structured English, Decision tree, and decision tables. The outcome of structured analysis is a new document, called system specifications, which provides the basis for design and implementation. The primary steps included in structured analysis are: 1. Study affected user areas, resulting in a physical DFD. The logical equivalent of the present system results in a logical DFD. 2. Remove the physical checkpoints and replace them with a logical equivalent, resulting in the logical DFD. 3. Model new logical system 4. Establish man/machine interface 5. Quantify costs and benefits and select hardware. The structured specification consists of the DFDs that show the major decomposition of system functions and their interfaces, the data dictionary documenting all interface flows and data stores on the DFDs, and documentation of the intervals of DFDs through structured English, decision trees, and decision tables.
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