IT glossary of terms, acronyms and abbreviations. Faulkner Information Services . 2015.
Common-cause and special-cause — Type of variation Synonyms Common cause Chance cause Non assignable cause Noise Natural pattern Special cause Assignable cause Signal Unnatural pattern Common and special causes are the two distinct origins of variation in a process, as defined… … Wikipedia
Control table — This simple control table directs program flow according to the value of the single input variable. Each table entry holds a possible input value to be tested for equality (implied) and a relevant subroutine to perform in the action column. The… … Wikipedia
Redundancy (engineering) — In engineering, redundancy is the duplication of critical s of a system with the intention of increasing reliability of the system, usually in the case of a backup or fail safe. In many safety critical systems, such as fly by wire aircraft, some… … Wikipedia
Common Object Request Broker Architecture — The Common Object Request Broker Architecture (CORBA) is a standard defined by the Object Management Group (OMG) that enables software components written in multiple computer languages and running on multiple computers to work together (i.e., it… … Wikipedia
Virtual Router Redundancy Protocol — (VRRP) is a non proprietary redundancy protocol described in RFC 3768 designed to increase the availability of the default gateway servicing hosts on the same subnet. This increased reliability is achieved by advertising a virtual router (an… … Wikipedia
Cyclic redundancy check — A cyclic redundancy check (CRC) is an error detecting code designed to detect accidental changes to raw computer data, and is commonly used in digital networks and storage devices such as hard disk drives. Blocks of data entering these systems… … Wikipedia
High Redundancy Actuation — (HRA) is a new approach to fault tolerant control in the area of mechanical actuation. Overview The basic idea is to use a lot of small actuation elements, so that a fault of one element has only a minor effect on the overall system. This way, a… … Wikipedia
Aircraft flight control systems — consist of flight control surfaces, the respective cockpit controls, connecting linkages, and the necessary operating mechanisms to control an aircraft s direction in flight. Aircraft engine controls are also considered as flight controls as they … Wikipedia
Triple modular redundancy — In computing, triple modular redundancy (TMR) is a fault tolerant form of N modular redundancy, in which three systems perform a process and that result is processed by a voting system to produce a single output. If any one of the three systems… … Wikipedia
Distributed control system — Part of a series of articles on Industry Manufacturing methods Batch production • Job production Continuous production Improvement method … Wikipedia
