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A use case diagram giving a pictorial overview of user requirements and brief use case descriptions. As the case study contains only an outline of a business scenario, you will also need to state any business rules, assumptions, etc, that your group has made in the course of putting together the database design.
An ER diagram covering the data requirements of the scenario, together with a completed entity specification form for each entity shown on your ER diagram. An electronic version of the specification form can be found on Blackboard.
Individually you will sit a multiple choice test (10 questions) which tests your individual knowledge on the modelling techniques used in this assignment (ERD and Normalisation).
Define the terms entity, attribute, role and relationship between the entities, giving examples for each of them. Ans: Entity: An entity is a "thing" or "object" in th
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice emplo
Normal 0 false false false EN-US X-NONE X-NONE
Which is another name for weak entity? Child is another name of weak entity.
In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
define normalisation and functional dependency
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
What is deadlock? How can it be avoided? How can it be resolved once it occurs? Deadlock happens when two transactions are each waiting on a resource that the other transaction
Modular growth: In distributed environments, it is simple to expand. Latest sites can be added to the network without affecting the operations of other sites, as they are somewhat
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