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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.
algorithums
ER model shows Static view.
Q. Facilitated Application Specification Technique? A team oriented approach is developed for needs gathering and is called facilitated application specification Techniques FAS
normalization Explain its forms in brief
Top down design: A top down design approach begins by identifying the main modules of the system, decomposing them into their lower level modules and iterating unless the desired
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.
What is A user manual? Ans) A "user manual" is a document that presents information essential to employ software or a system to get the desired results. Typically, what is expla
Question: (a) (i) Define the following terms briefly: COCOMO, DSI, FSP, MM, ACT, TDEV, (MM)AM. (ii) State the assumptions underlying the Basic COCOMO model. (b) Suppos
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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.
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