System Analysis and Design
The approach used in top-down analysis and design is

to identify a top level function an d then create a hierarchy of lower-level modules and components.
to identify the top level functions by combining many smaller components into a single entity
to prepare flow charts after programming has been completed
all of the listed here

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System Analysis and Design
Cost-Benefit analysis

evaluates the tangible and non-tangible factors
None of these
estimates the hardware and software costs
All of these
compares the cost, with the benefits, of introducing a computer-based system

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System Analysis and Design
A system analyst designs a new system by

adopting a developed system to the present environment
propose alternatives to the current system
identifying sub systems and the interfaces between sub systems
None of these
developing the system as a large, single unit

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