Transcript OUTPUT CONTROLS Chapter 15

OUTPUT CONTROLS
Chapter 15
Inference Controls
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Prevent four types of compromise that
can occur :
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Positive compromise
Negative compromise
Exact compromise
Approximate compromise
Restriction Controls
Which limit the set of responses that will
be provided to users to try to protect
the confidentiality of data about
persons in the database.
Perturbation Controls :
Which introduce some type of noise into
the statistics calculated on the basis of
records retrieved from the database.
They can be exercised on the records
used as input to a statistical function.
Batch Output Production and Distribution
Controls
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Batch output is output that is produced at
some operations facility and subsequently
distributed to or collected by the custodians
or users of the output
Production and distribution controls over
batch output are established to ensure that
accurate, complete, and timely output is
provided only to authorized custodians or
users.
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Stationery supplies storage controls
Report program execution controls
Queuing/spooling/printer file controls
Printing controls
Report collection controls
User/client services review controls
Report distribution controls
User output controls
Storage controls
Retention controls
Destruction controls
Batch report design controls
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Report name
Time and date of production
Distribution list (including number of copies)
Processing period covered
Program producing the report
Contact person
Security classification
Retention date
Method of destruction
Page heading
Page number
End of job marker
Online Output Production and Distribution
Controls
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Source controls
Distribution controls
Communication controls
Receipt controls
Review controls
Disposition controls
Retention controls
Deletion controls
Audit Trail Controls
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Accounting Audit Trail
Shows what output was presented to users,
who received the output, when the output
was received, and what actions were
subsequently taken with the output.
Operations Audit Trail
Maintain the record of resources consumed
by components in the output subsystem to
assimilate, produce, distribute, use, store,
and dispose of various types of output.
Existence Controls
Needed to recover output in the event
that it is lost or destroyed.