System Analysis and Design
Data Definition Language (DDL)

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

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System Analysis and Design
Sequential or series testing is

is checking the logic of one or more programs in the candidate system
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
testing changes made in an existing or a new program

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