käyttöliittymärajapinta
käyttöliittymärajapinta refers to a software interface that mediates between the graphical or textual user interface of an application and the underlying application logic or backend services. The term is used primarily in Finnish computing contexts and is equivalent to the English phrase User Interface Interface or UI layer. It allows developers to separate concerns, enabling the UI to be modified or replaced without affecting business logic, and vice versa. The separation is typically achieved through abstraction layers, such as view models, presenters, or controllers that expose operations to the UI and consume data from model classes.
The concept emerged from the Model‑View‑Controller architecture of the 1970s and was refined through patterns such
Typical applications of a käyttöliittymärajapinta include desktop productivity tools, mobile apps, and web browsers where the