määräajoin

Määräajoin is a Finnish term used in technical language to describe actions that are performed at fixed times or in fixed quantities. It denotes that a process is executed according to a predefined schedule or dosing plan rather than continuously or randomly.

The term is common in manufacturing, process control, logistics, and data collection. In practice, määräajoin operations occur periodically, for example every four hours or after a certain amount of product has been produced. In software and data systems it corresponds to time-triggered or scheduled tasks.

Esimerkkejä include: Laitoksen säätöjärjestelmä laukaisee määräajoin huoltotoimenpiteen. Näyte otetaan määräajoin kolmen tunnin välein. Ohjelmisto tukee määräajoin suoritettavia tehtäviä, kuten varmuuskopioita.

Etymology and notes: the word is a compound of määrä (quantity, limit) and ajan (time). In technical Finnish it is used to indicate fixed timing or dosing, and may be used in contexts where a fixed schedule is essential. The concept is related to but distinct from yleisesti käytetty termi säännöllisesti, since määräajoin emphasizes the fixed timing or quantity aspect. It is closely associated with concepts such as periodic scheduling and time-triggered control.

See also: periodic scheduling, time-triggered control, scheduled task, sampling interval.