Term:Periods Processing

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CNSSI 4009

Periods Processing - Processing of various levels of classified and unclassified information at distinctly different times. Under the concept of periods processing, the system must be purged of all information from one processing period before transitioning to the next.

DSS Glossary

Periods Processing - Processing various levels of classified and unclassified information at distinctly different times. Under the concept of periods processing, the system must be cleared of information from one processing period before transitioning to the next. A system is said to operate in a "periods processing" environment if the system is appropriately sanitized between operations in differing Protection Level periods, or with differing user communities or data. Provided the sanitization procedures between each Protection Level segment have been approved by the Designated Approving Authority based on guidelines from the Program Manager or responsible official, the system need meet only the security requirements of each processing period, while in that period. If the Designated Approving Authority approves the sanitization procedures for use between periods, the security requirements for a given period are considered in isolation, without consideration of other processing periods. Such sanitization procedures shall be detailed in the System Security Plans/System Security Authorization Agreement.