Database management subsystem, Computer Engineering

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(a) Explain, using suitable examples, the functions of each of the sub system mentioned in the context of a large chain of supermarkets

(i) Database Management Subsystem

(ii) A model Management Subsystem

(iii) A User Interface Subsystem and

(iv) a Knowledge management subsystem. Explain briefly the functions of each of the subsystem mentioned.

(b) What is sensitivity analysis and when is it used?

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