System Analysis and Design
The reservation system of Indian railways is an example of

Interactive decision support system
expert system
transaction processing system
management controls system
None of these

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System Analysis and Design
Most algorithms follow the format of

Entering the input items, then processing the output items, and then displaying the output items
Entering the output items, then displaying the output items, and then processing the output items
Entering the input items, then processing the input items, and then displaying the output items
Entering the input items, then displaying the input items, and then processing the output items
Entering the output items, then processing the output items, and then displaying the output items

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System Analysis and Design
Direct-access organization

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
has records placed randomly throughout the file

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System Analysis and Design
System prototyping helps the designer in

giving a demo of the software, to the system manager to whom he reports
making the programmers understand how the system will function.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
all of the listed here

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