119 which of the following database design techniques shows the interrelationships b 4312540

119 which of the following database design techniques shows the interrelationships b 4312540

119) Which of the following database design techniques shows the interrelationships between files, their contents, and their uses?

A) Data structure diagrams

B) Record layouts

C) File-related matrices

D) File analysis sheets

120) A file-related matrix reveals that a file's data item A is used in six different reports, while data item B in the same file is not used in any report. The systems designer should consider

A) using both data items A and B.

B) deleting data item B and using only data item A.

C) using neither data item A nor B.

D) deleting data item A and using only data item B.

121) Prepackaged design systems have both advantages and disadvantages in assisting the designer with the systems development cycle. A disadvantage of such prepackaged design methodologies is that they do not

A) specify desired outputs.

B) provide assistance in structuring a particular problem.

C) adequately deal with the problem of response time.

D) Answers A and C are correct.

122) A company should decide whether to develop software independently or purchase software

A) when preparing the detailed design proposal.

B) at the end of systems analysis.

C) at the end of systems planning.

D) when preparing design specifications.

123) Which of the following is not an advantage of using purchased or “canned” software packages?

A) They are less expensive.

B) They seldom meet all of a company's needs precisely.

C) They are already debugged.

D) The company can “test drive” the product before making a substantial investment.

124) When evaluating purchased software it is often helpful to use a decision table format to consider various issues and potential problems with the software. A question (or questions) to be asked in a decision table which might uncover any “skeletons in the closet” regarding a software package is

A) “How many other installations that are 'second-reference organizations' have used the software, and for how long?”

B) “How stable is the software vendor?”

C) “How closely does the software fit the needs of the company?”

D) “How flexible is the software?”

125) When a company is purchasing software, it should choose hardware

A) before choosing software.

B) at the end of systems analysis.

C) after choosing software.

D) at any time either before or after choosing software.

126) One reason to put off the purchase of computer hardware or software is

A) the price of hardware and software will drop shortly.

B) a new version of hardware or software will be available soon.

C) the company wants the latest “state-of-the-art” system.

D) None of these answers is a good reason to put off the purchase of computer hardware or software.

127) Actively involving the ultimate users in the development of a system might help to limit

A) communications problems.

B) unrealistic or vague requirements during the analysis phase.

C) disillusionment and confusion during the design phase.

D) All of these answers are correct.

128) It is normal for deficiencies in a systems plan to only become obvious during the

A) design and implementation phases.

B) planning and analysis phases.

C) planning and design phases.

D) If the systems plan is correctly executed, deficiencies will not be present.

 

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