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16. 

System design aid should primarily
A. help analyse both data and activities
B. help in documentation
C. help in programming
D. generate code
E. None of the above
17. 

Any data that are entered into the computer, for the first time, will go through the process of
A. System testing
B. Sequential testing
C. String testing
D. Validation
E. None of the above
18. 

Mistakes made in the system analysis stage show up in :
A. implementation
B. system design
C. system developments
D. All of the above
E. None of the above
19. 

The combination of the top-down and the bottom-up approach may be referred to as an
A. integrative approach
B. interpretive approach
C. interactive approach
D. both b and c
E. None of the above
20. 

Which of the following statements is not true
A. Entity Relationship Diagrams are used to design files
B. Systems Overview can be prescribed by Data Flow Diagrams
C. Phases, in a Systems life cycle, are fixed and invariant.
D. Indexed files are faster than sequential files in all situations
E. None of the above