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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. How to build the Structure Chart? Building the Structure Chart Processes in the DFD are liable to represent one module on the structure chart Efferent processes
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Q. What is Constructive Cost Model? COCOMO model denotes Constructive Cost Model. It is an empirical model basis on project experience. It is well-documented and independent mo
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