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8.7 Data Integrity |
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Section 8.7
8 Legal Issues And Data Security
8.7 Data Integrity
"Data Integrity" refers to the correctness of data.
Errors On Input
- Typing errors
- Transcription errors
- Lost batch sheets
Errors In Operation Procedures
- Master file update program ran twice
- Father generation used instead of the son
Logic Errors In Software
- The program does not work the way it was planned
- Often occurs with new software
Errors In Data Transmission
- Electrical interference
- Loose connections
Errors Due To Outdated Information
- May be a particular problem in some organisations
The following steps can be taken to try and ensure data integrity:
- verification.
- validation (range check, presence check, picture check, character
count, file lookup, check digit).
- control totals in batch processing.
- parity bits for data transmission and RAM.
- Checksums for data transmission.
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