System Analysis and Design
Direct-access organization

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

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System Analysis and Design
Unit testing is

None of these
making sure that the new programs do in fact process certain transactions according to Specifications
is checking the logic of one or more programs in the candidate system
running the system with line data by the actual user
testing changes made in an existing or a new program

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System Analysis and Design
A system design is said to be functionally modular if

the system is able to handle all the function of the application
the system is developed using structured programming through COBOL or PASCAL
None of these
each module performs a specific function and can be developed relatively independently by programmers
the system makes extensive use of function. keys for maximum user assistance

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