System Analysis and Design
In top down analyis and design

each succeeding phase is more detailed than the phase before it
each succeeding phase is less detailed than the phase before it
each succeeding phase is as detailed as the phase before it.
all of the listed here

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

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

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

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

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