System Analysis and Design
Which of the following is not a characteristic of structured system development?

the use of graphical tools, such as data-flow diagrams, to model system
None of these
specification of the interfaces between modules
partitioning of systems into manageable levels of detail
All of these

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

All of these
Insurances, maintenance, and other expenses are included in the rental charge
None 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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