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

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

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System Analysis and Design
Sequential or series testing is

running the system with line data by the actual user
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
testing changes made in an existing or a new program

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