Data Integrity

The state that exists when computerized data is the same as that in the source documents and has not been exposed to accidental or malicious alteration or destruction.

Maintenance of data values according to data model and data type. For example, to maintain integrity, numeric columns will not accept alphabetic data. See referential integrity.

The property that data has not been altered in an unauthorized manner. Data integrity covers data in storage, during processing, and while in transit.

1. [The] condition existing when data is unchanged from its source and has not been accidentally or maliciously modified, altered, or destroyed. [INFOSEC-99] 2. The condition in which data are identically maintained during any operation, such as transfer, storage, and retrieval. 3. The preservation of data for their intended use. 4. Relative to specified operations, the a priori expectation of data quality. 5. The property that data has not been altered or destroyed in an unauthorized manner [7498-2]. 6. The state that exists when computerized data is the same as that in the source documents and has not been exposed to accidental or malicious alteration or destruction [TCSEC].