System Analysis and Design
The approach used in top-down analysis and design is

all of the listed here
to identify the top level functions by combining many smaller components into a single entity
to identify a top level function an d then create a hierarchy of lower-level modules and components.
to prepare flow charts after programming has been completed

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

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

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System Analysis and Design
Indexed-Sequential organization

has records placed randomly throughout the file
means storing records in contiguous blocks according to a key
uses an index for each key type
stores records sequentially but uses an index to locate records

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System Analysis and Design
The term Parallel Run refers to

the concurrent operation of an existing system and a new system
the processing of two different jobs initiated from two terminals.
None of these
the same job run on two different computer to test their speeds
All of these

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