System Analysis and Design
The Turnaround is

the elapsed time between the receipt of the input and the availability of the output
a group of related fields
None of these
a program statement that violates one or more rules of the language in which it is written
the key information of programming

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System Analysis and Design
Indexed-Sequential organization

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

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System Analysis and Design
The black-box concept:

All of these
assumes that the black box is independent
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
assumes that inputs and outputs will remain stable
None of these

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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
testing changes made in an existing or a new program
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

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