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What do u mean by Top down approach and Bottom up approach?
How will u implement these in u r project ?
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Answer Posted / monisha
Top-down approach develops a model of information flow that acts as a guide for designing the information system.By using the model,the information subsystem may be prepared or defined.Each subsystem comprises of various modules.The various subsystem and the modules are coordinated to achieve the objectives of integration.The information system so developed is viewed as total system.
Bottom-down approach starts from the identification of life-stream systems and file requirements as well as processing program for life stream developed.Second step is towards the integration of data kept in different data files of each information system ensuring that the uniform data is being used by all programs.Third step is the addition of decision models and various planning models for supporting the planning activities involved in management fields.
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