Generalization in system analysis and design refers to the process of identifying common characteristics and behaviors among different entities or components within a system. It allows for the abstraction of these similarities into a higher-level concept or class, thereby simplifying the design and promoting reuse. This technique helps in creating more flexible and maintainable systems by reducing redundancy and enhancing the clarity of relationships within the system architecture. Generalization is commonly used in object-oriented design, where it can lead to the establishment of hierarchies and inheritance.
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System Analysis and Design
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Analysis is detail design. Design in general is to abstract the concept at a higher level. System Design defines the system you try to build and help you to break down that system into smaller and manageable pieces to do the system analysis. You define your system as: Input, Core functions, Output (no specific for each part, this is the design). When you define Input, how to get the input data, action, etc., you may still in design mode, but from the overall point of view, you are doing the analysis.
The stages of system analysis are scope definition, problem analysis, requirements analysis, logical design and decision analysis. System analysis is defined as the study of sets of a system to find ways of improving its efficiency.
J. Duncan Glover has written: 'Software Manual for Power System Analysis and Design' 'Power System Analysis and Design'
One example of a system and sub system in system analysis and design is an organization (system) with interrelated department (sub system). Another example would be a computer (system) and all of its components (subsystem).
In system analysis dfd is the primary step.it shows how the data flows from higher to lower level. which is very crucial to design. without this direct design can be a risky process.
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