System Analysis and Design
Sequential organization

uses an index for each key type
None of these
has records placed randomly throughout the file
means storing records in contiguous blocks according to a key.
Stores records sequentially but uses an index to locate records

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System Analysis and Design
Sequential or series testing is

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
running the system with line data by the actual user
is checking the logic of one or more programs in the candidate system

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System Analysis and Design
Advantages of Relational Database Management systems are

All of these
Data independence since it allows the database to grow by adding new attributes and relations.
Flexibility, of relating different logical files
None of these
Security controls can be more easily implemented.

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