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(a) Draw an Entity-Relationship model for the relational schema given in the Appendix. Show all the entities, relationships, relationship names, and attributes and also underline the primary key for each entity. Use the SELECT SSADM convention to draw the entity.
(b) Write the SQL code that will create ALL the tables as given in the appendix. Your answer should not contain the primary key and foreign key constraint declaration. The data type for each attribute should be as specified in the Appendix II. Assume that the tables will be associated with the dbo schema. The tables must be created on the Primary Filegroup.
Distinguish software faults and software failures Ans: In case of a failure, the software does not do what the user expects. A fault is a programming error that may or may not
what is design assignment
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Discuss in detail the design concepts. Abstraction Functional abstraction Data abstraction Control abstraction Information hiding Each unit in the s
What is Software failure? Software failure happens when the software does not do what the user wants to see.
What are the advantages and disadvantages of big-bang? Advantages: This approach is simple. Disadvantages: It is hard to debug. It is difficult to isolate errors while testi
What are the Toolsused in system analyst Systems analyst have numerous tools to help them in carrying out their work. As many of their projects are for big companies it is ess
What is Requirement Traceability? Explain its importance. Requirement Traceability is mapping of needs to test cases. There are two major traceability: Forward and Backward. It
Q. Explain Predictive validity? Predictive validity: It is the potential of the model to predict future failure behaviour from present and past failure behaviour. This capabi
Define Requirement Engineering . Requirement Engineering is a process in which all of the activities required to maintain and create a system requirements document. The four
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