D focus early on the users and their work 15 high

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d. Focus early on the users and their work.
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15. High cohesion of classes____. a. increases system complexity b. makes such classes difficult to maintain c. helps to group functionality logically d. makes testing harder 16. Which of the following statements does not represent a valid type of software maintenance? a. Corrective b. Executive c. Perfective d. Adaptive 17. The <<includes>> relationship represents the situation of one use case being used by another one. It is similar to the ____relationship. a. <<extends>> b. <<invokes>> c. <<aggregates>> d. None of the above. 18. What is an important activity in the support phase of a SDLC? a. System maintenance. b. User acceptance testing. c. System installation. d. Documentation of functionality. 19. A good requirements specification report typically includes information on ____. a. scope of system analysis b. all functional and non-functional requirements c. high-level system architecture d. a test plan
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20. Which one of the following statements best represents a key activity of software systems post- implementation review? a. Identify what went wrong b. How well original requirements were met c. Comparing expected and actual benefits d. All of the above
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