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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.
What does it mean by business process engineering tools ?
A strategy for software testing integrates software test case design methods into a well - planned series of steps that result in the successful construction of software. Common
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What are functional and non-functional requirements?
Determine the working of developer of Software As developer of Software and user of Software became separate organisation, business concepts such as software costing, Software
patterns
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