Cloud computing is still considered a disruptive technology even though it has been here for several years now. However, cloud computing is much more than that, it is a business model. Many companies that have sold software in a traditional way are now attending to this revolution wondering if that new technological and business shift is adequate for them and how they are to move their application towards the clouds, transforming alongside the company in a service oriented company. The European Project ARTIST aims to guide companies in this transition by providing them with a methodology, methods and tools, from when the migration is just a thought, until it can be provisioned as a service, taking into account technical, business and organizational aspects.