System Analysis and Design
A common reason for changing an information system is

new requirements
problems in the existing system
new technology
None of these
All of these

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System Analysis and Design
In a Decision tree

the root is drawn on the left and is the starting point on the decision sequence
all of the listed here
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
the branch, to be followed, depends on the conditions and decisions, to be made

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

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

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