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What are the various elements of data design?
i. Data object - The data objects are identified and relationship between various data objects can be shown using ERD or data dictionaries.
ii. Databases - Using software design model, the data models are translated into data structures and data bases at the application level.
iii. Data warehouses - At the business level useful information is identified from several databases and the data warehouses are formed.
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Why software change occurs? Software change occurs because of the following reasons. New requirements appear when the software is used. The business atmosphere changes. E
Problem 1. Explain why it is necessary to design the system architecture before the specifications are written 2. Explain why it is important to describe software designs 3.
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Explain Cardinality & Modality ?
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State the function of Functional model Functional model: This defines operation which the system must implement. For every operation, from analysis model must be assigned al
What does Validation represent? Validation show the set of activities that make sure that the software that has been built is satisfying the customer requirements.
What is structured programming and why is it important? Structured programming is a programming which was coined in the late 1960's to mean programming without using go to stat
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