telecommunication Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...

, the term summation check (sum check) has the following meanings: *A checksum based on the formation of the sum of the digits of a numeral. **Note: The sum of the individual digits is usually compared with a previously computed value. *A comparison of checksums on the same

data In the pursuit of knowledge, data (; ) is a collection of discrete values that convey information, describing quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted ...

on different occasions or on different representations of the data in order to verify data integrity.

References

* Error detection and correction {{telecomm-stub