käyttöperusteissa

Käyttöperusteissa is a Finnish term formed from käyttö (use) and peruste (basis) with the inessive plural ending -issa. It literally means “in the bases of use” or “according to usage.” The phrase is technical and is most often found in legal, contractual, pricing, and ICT texts to indicate that something is determined or calculated based on how much something is used.

The concept is commonly applied in contexts such as pricing and billing, licensing, and resource allocation. In practice, a usage-based approach means that charges, permissions, or limits depend on actual usage or measured activity. Examples include usage-based pricing models, where fees are tied to the amount of service used, or licensing arrangements that grant rights according to how extensively a product or service is utilized. The term can also appear in budgeting or cost allocation, where costs are distributed based on usage metrics.

Linguistic notes: Käyttöperusteissa is the inessive plural form, suitable for describing conditions or rules that are “in” or “under” the bases of use. It is predominantly encountered in formal or technical writing. In everyday Finnish the phrase is less common, and related expressions such as käyttöpohjainen tai käytön mukaan are more typical in casual language.

See also: käyttöperuste (singular basis for use), käyttöperusteinen hinnoittelu (usage-based pricing), käyttölisensointi, käyttöoikeus.