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

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
None of these
the system is able to handle all the function of the application
the system is developed using structured programming through COBOL or PASCAL

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System Analysis and Design
In a Decision tree

the branch, to be followed, depends on the conditions and decisions, to be made
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
all of the listed here
the root is drawn on the left and is the starting point on the decision sequence

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