System Analysis and Design
Conversion method in which users, being used to an old system, continue to use the old system, alongside the new system, is

parallel run
multi processing
None of these
All of these
multitasking

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System Analysis and Design
Sequential organization

has records placed randomly throughout the file
means storing records in contiguous blocks according to a key.
Stores records sequentially but uses an index to locate records
None of these
uses an index for each key type

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System Analysis and Design
An open rectangle

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

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