toimivusse

Toimivusse is an Estonian illative case form of the noun toimivus, which means functionality or operability. The illative form indicates movement toward or entry into a state of being functional. In technical and project language, toimivusse is used to describe the transition to, or the destination state of, operability.

In usage, toimivusse appears in contexts that discuss bringing a system, product, or process into working condition. Common constructions include phrases meaning to reach or achieve operability, to bring something into operation, or to migrate a system to an operational state. For example, one might say that a system has reached toimivusse or that a project aims to viia toode toimivusse (bring the product into functionality). The form is most typical in formal or technical Estonian rather than casual speech.

Grammatically, toimivusse is formed from the base noun toimivus plus the illative suffix -sse, signaling direction toward functioning. It is part of a broader set of states or conditions expressed with related cases and stems, such as toimivuse (genitive) or toimivust (partitive), each serving different grammatical roles in sentences.

Overall, toimivusse serves as a precise term in Estonian for discussing operability and the process of becoming functional, especially in engineering, IT, and project management documentation. See also toimivus (functionality) and related state-nouns used to describe operational readiness.