A rectangle with rounded corners is used to show the occurrence of a transforming process.( )
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A use case:()
A. summarizes an activity, its trigger, input, and output.
B. describes a subsystem of a data flow diagram showing how the processes use data produced by other processes.
C. describes how the data is partitioned into programs for different users.
D. shows when the data is updated, read, created or deleted.
A method that provides conceptional freedom for representing processes and flows in a business system is the ____.
A. database
B. entity-relationship diagram
C. data flow diagram
D. flow chart
Which of these is () a guideline for developing a prototype?()
A. Build the system slowly and carefully.
B. Modify the prototype in successive iterations.
C. Emphasize the user interface.
D. Work in manageable modules.
Which of the following is a reason why a systems analyst would want perform sampling?()
A. thorough collection of data
B. increasing user involvement
C. accuracy is not a project requirement
D. reducing bias
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