To provide tailor-made software for use in a specific department of a hospital, a software package suitable for use by more than one department of the hospital is provided including components implementing general tasks. Then, software is added implementing tasks which may be considered to extend the general tasks. This extension can be tailor-made for the specific department. In at least one embodiment, the software package includes both front end and back end software components, front end components reacting to user inputs and calling up back end software components, and the extension may be both at the front end and at the back end side.