TECHNICAL BRIEFING: Acceptability of transmission errors in on‐line systems Available to Purchase

The basic reasons for data transmission errors are described and a distinction between baud and bit/s is drawn. Examples of error detection/correction methods are given; in their absence the recipient's ability to detect errors depends upon redundancy in the message. It is suggested that since such methods are not normally used in on‐line access to data bases, error rates typic‐ally encountered may be unacceptable when accessing nonredundant data for which accuracy is vital.