When an organization faces new types of collaboration, for example after a company merger, there is a need to integrate the existing software. Important challenges are how to create a realistic vision of a future integrated system, how to make the vision concrete enough to be able to work towards the vision, and of course to carry out the actual integration process. This paper focuses on how to concretize the vision. We have carried out a multiple case study, consisting of 9 cases. This paper presents the observations made in the form of recurring patterns that can be used as recommendations for other organizations facing the same challenge.