System Analysis and Design
The black-box concept:

assumes that inputs and outputs will remain stable
assumes that the black box is independent
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
All of these
None of these

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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
None of these
All of these
No financing is requird. The risk of system obsolescence is shifted to the lessor
the flexibility of modifying the system at will

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

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

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