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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
Q. Differentiate between functional testing and structural testing. Ans: Functional testing signifies behavioural testing or Black box testing. In this techniques the teste
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What is Big-bang waterfall model? Big bang Model of S/w development is based on the big bang theory. A huge quantity of people, money and time are put together, lot of energy
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Explain Infeasible Path? Program statement sequence that can never be implemented.
(a) What is a view? (b) What is the implication of creating a view with the select * statement in the view definition? (c) Make reference to the relational schema given in
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