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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 is iterative and evolutionary developments? how iteration help in refining requirements
QUESTION 1 (a) Define "archives" as records and explain their importance. (b) Elaborate on the steps archivists have to undertake for the storage of archival records. QU
Enumerate the evolution of software The below Table summarises evolution of software: 1960s Infancy Machine Code 1970s Project Years
Q. Explain acceptance testing and beta testing? Acceptance Testing as well as Beta testing: System tests are designed to authenticate a fully developed system to guarantee th
Dear Sir/ Madam I have some remaining test questions need to be answered, from yesterday''s test bank can I get a solution please? Regards John
What is COCOMO model? COCOMO stands for COnstructive COst MOdel. It is used for cost Effort=a * KDLOCb Where a and b are two parameters of the model whose specific values
Q Who is a Software Engineer? What is his role in software development process? Ans) A software engineer is responsible for the implementation and design of a variety of softwa
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Overview You are a Systems Analyst working for Zeppelin Industries Inc. Many of the software projects your company attempts to deliver are failing or have already failed. The
Q. Define Object and class associations? Object/class associations:- Objects/classes interact with each other. Multiplicity defines how many instances of one object/class can
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