System Analysis and Design
Top-down programming is

an approach in which the top module is first tested then program modules are added from the highest level to the lowest level
a group of related fields
a map of the programmer's view of the data
a series or group of components that perform one or more operations of a more complex system

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

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

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System Analysis and Design
Data Definition Language (DDL)

specifies for the DBMS what is required; the techniques used to process data
describes how data are structured in the data base
determine how data must be structured to produce the user's view
all of the listed here

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