System Analysis and Design
A square symbols

identifies data flow
None of these
is a data store-data at rest, or a temporary repository of data
defines a source or destination of system data
represents a process that transforms incoming data flow(s) into outgoing data flows

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System Analysis and Design
HIPO

is a forms-driven technique in which standard forms are used to document the information
consists of a hierarchy chart and an associated set of input/process/ output charts
None of these
All of these
captures the essence of top down decomposition.

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System Analysis and Design
Which of the following statements, is (are) not true for the lease option

Insurance, maintenance and other expenses are included in the rental charge
Lease charges are lower than rental charges for the same period and are also tax deductable.
All of the listed here
Lease may be written to show higher payments is early years to reflect the decline in value of the system

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