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In engineering and systems theory, redundancy is the intentional duplication of critical components or functions of a system with the goal of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.
Linguists usually call this redundancy to avoid confusion with syntactic pleonasm, a more important phenomenon for theoretical linguistics. It usually takes one of two forms: Overlap or prolixity. Overlap: One word's semantic component is subsumed by the other: "Receive a free gift with every purchase."; a gift is usually already free.
In linguistics, a redundancy is information that is expressed more than once. [ 1 ] [ 2 ] Examples of redundancies include multiple agreement features in morphology , [ 1 ] multiple features distinguishing phonemes in phonology , [ 2 ] or the use of multiple words to express a single idea in rhetoric . [ 1 ]
In francophone Belgium, the term Procédure Renault has become a synonym for the consultation process leading to mass redundancies, due to a controversial mass layoff and resultant legislation in the late 1990s. When an employee has been laid off in Australia their employer has to give them redundancy pay, which is also known as severance pay.
A limited amount of redundancy can improve the effectiveness of communication, either for the whole readership or at least to offer help to those readers who need it. A phonetic example of that principle is the need for spelling alphabets in radiotelephony. Some instances of RAS syndrome can be viewed as syntactic examples of the principle.
Redundancy (information theory), the number of bits used to transmit a message minus the number of bits of actual information in the message; Redundancy in total quality management, quality which exceeds the required quality level, creating unnecessarily high costs; The same task executed by several different methods in a user interface
This allows system redundancy with two IO-Controllers accessing the same IO-Devices simultaneously. In addition, there is a prescribed procedure Dynamic Reconfiguration (DR), how the configuration of an IO-Device can be changed with the help of these redundant relationships without losing control over the IO-Device.
Pleonasm – Redundancy in linguistic expression; Purple prose – Prose text that is overwritten in a way that disrupts a narrative flow; Readability – Level of ease with which a reader can understand written text; Redundancy (linguistics) – Information that is expressed more than once; Tachylalia – Extremely rapid speech