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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.
I want to make assignements regarding software engineering.
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A test method satisfying coverage criteria that needs each decision point at every possible branch to be implemented at least once.
how transaction mapping is done.??clear me with a brief example
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explain software document.create the necessary documents for employee management system.
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