Define a use case and a use case diagram, and prepare a sample of each.

What will be an ideal response?

A use case represents the steps in a specific business function or process. A use case diagram is a visual summary of related use cases within a system or subsystem. One example is an auto service department. The operation involves customers, service writers who prepare work orders and invoices, and mechanics who perform the work.

Example of a use case diagram for an auto service department:



Computer Science & Information Technology

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Answer the following statements true (T) or false (F)

1. If I have already written the``` #include ```header, I can overload ``` operator<< for `````` class A ```as follows: 2. You have a helping function that is not a member of your class. You want your class member functions to be able to see it and use it but no other file in your program may see it. You can place it in an unnamed namespace to make it invisible from outside the file. 3. Namespaces may not be nested. 4. During name resolution, nested namespaces behave like nested blocks.

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Computer Science & Information Technology

Explain why it is important to use the right words when describing your problem to tech support.

What will be an ideal response?

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Computer Science & Information Technology

What is the correct signature for the overloaded postfix ++ operator?

a. Rational operator++(int &dummy) b. Rational operator++() c. Rational operator++(int dummy) d. Rational operator++(Rational &r)

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Computer Science & Information Technology

A new version of an existing software package is known as a(n) ________

Fill in the blank(s) with correct word

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Computer Science & Information Technology