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

All of these
None of these
to identify a top level function and then create a hierarchy of lower level modules and components
to prepare flowcharts after programming has been completed
to identify the top level functions by combining many smaller components into a single entity.

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System Analysis and Design
A Decision table

gets an accurate picture of the system
represents the information flow
documents rules, that select one or more actions, based on one or more conditions, from a set of possible conditions.
shows the decision paths

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System Analysis and Design
The advantage of Purchase Option is (are)

None of these
Insurances, maintenance, and other expenses are included in the rental charge
the flexibility of modifying the system at will
No financing is requird. The risk of system obsolescence is shifted to the lessor
All of these

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