This Bachelor Thesis in the area of Computer Science and Work Science describes the process of design and development of an IT-tool between the municipality of Ron-neby and TietoEnator a development and consultancy firm, the Gothenburg office. The thesis focuses mainly on the cooperation between the consultant designer and the local municipal. Through cooperation, the organisation is incorporated into the tool and the tool is incorporated into the organisation. Concepts that are central in this thesis are design, cooperation and tailoring. A question raised is, if distance work and extensive cooperation might be a good way of working in the process of design and development, when the organisation is being incorporated into the tool. Advan-tages and disadvantages of this way of working are discussed. Our studies show that distance work is a good complement for personal meet-ings between designer and co-developer. There are several advantages and disadvan-tages with distance work. Through cooperation, the co-developer gains the advantage of being able to affect the tool through proposals of design. This also gives an in-creased opportunity for tailoring in the future. The support to the co-workers in the organisation is important for how the tool will be received. The long-term aspect of the process of design and development of IT is of importance when organisations continually develop and change over time. The IT-tool ought to be flexible and tailorable. In the end of this thesis, some proposals are given concerning cooperative proc-esses of design and development, on the basis of our studies during the work with this Bachelor Thesis.