System Analysis and Design
Acceptance testing is

is checking the logic of one or more programs in the candidate systems
making sure that the new programs do in fact process certain transactions according to Specifications
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
In Decision trees

None of these
nodes represent the conditions, with the right side of tree listing the actions to be taken
the branch depends on the condition and decisions to made
All of these
the root is drawn on the left and is the starting point on the decision sequence.

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System Analysis and Design
Data Definition Language (DDL)

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
specifies for the DBMS what is required; the techniques used to process data

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System Analysis and Design
Direct-access organization

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

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