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THE NATURE OF THE PROBLEM
Accuracy Control on Batch Processing
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accuracy controls action alarm audit auditors authorization tables balance batch bits burglar alarms Chapter characters Company computer center computer room computer system consumer reporting agency correct cost cryptanalyst cryptography damage data banks data base data processing data sets designed detect detectors device documents door embezzlement employee enciphering encoded ensure entered entry equipment error Error burst error-detecting codes example failure fire forward error correction guard Halon hardware identification input installation Insuring Agreement intruder invoice journal locks loss machine magnetic needed occur on-line operating system password person personnel polynomial possible prevent private branch exchange procedures protection reconstruction records responsible scan security code security level security officer sensitive data specifications storage stored SYSTRAN tape and disk techniques telephone terminal operator tion transaction transmission transmitted types unauthorized updated vault vital records