Knowledge is appraised information. Features and attributes of interfaces were previously specified and therefore prepared as precisely as possible for implementation at a later stage. This goes for color and form, just as it does for object behavior.
Designers therefore have to understand WHY a user can easily operate an application and find it aesthetically pleasing at the same time. Simply validating a product does not guarantee ist success. A software that can be easily operated and is experienced inwardly must be realized. We therefore research which interface features match these dimensions and which combinations and characteristics work particularly well, because they are firmly rooted in the user as operating knowledge. Using the classification we have developed and the related innovative measurement variables – also known as taxonomy – we make the invisible part of these experiences "visible" and quantifiable.