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System analysis and design Short Answer Questions Q1) What are the differences between the logical and physical ERDs? Q2) At the end of the design

System analysis and design

Short Answer Questions

Q1) What are the differences between the logical and physical ERDs?

Q2) At the end of the design phase, there is a document named the system specification that describes the different design documents and their uses. What is the consolidated purpose of this deliverable and why is it important?

Q3) What is referential integrity and how is it implemented in a relational database?

Q4) Compare between the types of interface design prototypes.

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