The user interface cannot be integrated into the company’s processes and way of working: For example, a variant generator of a well-known software package is very awkward to use and requires IT expertise and a programming-oriented approach. In one case, careful reprogramming of the user interface provided the design engineers with a simple interface that works well in their language. They are now able to provide all the necessary IT support as part of their job description. This means that it is not necessary to bring in the specialists, which would result in unnecessary process interfaces, thus making the processes slower and more unreliable. However, the need for a simpler process must be offset against the increased cost of adapting the user interface. Such modifications are often not difficult to implement, but are “merely” time consuming and thus expensive.