toiminnallisten

Toiminnallisten is the genitive plural form of the Finnish adjective toiminnallinen, meaning functional or operational. It is used when the head noun in a phrase is in the genitive plural, so the adjective takes the corresponding ending to agree in number and case. The form is common in technical, design, and academic Finnish to discuss aspects related to function rather than mere appearance.

Morphology and usage notes: toiminnallinen derives from the noun toiminta, meaning activity or function, with the typical adjective suffix -llinen. In its genitive plural form, it becomes toiminnallisten, for example when describing multiple functional features or requirements that belong to someone or something. The nominative plural form is toiminnalliset, which is used for subjects or predicates, while toiminnallisten is used in contexts requiring the genitive plural.

Examples:

- Laitteen toiminnallisten ominaisuuksien määrittely on keskeinen osa suunnittelua. (Defining the device’s functional features is a central part of design.)

- Toiminnallisten vaatimusten huomioon ottaminen parantaa järjestelmän käyttökelpoisuutta. (Taking functional requirements into account improves system usability.)

- Erotat toiminnallisten ja ei-toiminnallisten arkkitehtuurien välisen eron. (You distinguish the difference between functional and non-functional architectures.)

See also: Finnish adjective declension, genitive plural in Finnish, functional requirements.