This resource is not one to be used in a linear fashion. As soon as you have developed your vision you will need to be thinking about how you will know whether or not you have succeeded in delivering it. Moreover success is not a fixed goal - you need to consider how you will identify changing requirements and adapt to meet them. We look at some ways you might go about doing this and some of the reflections of others who have gone through this process. Many of the projects featured in this resource are very new in 2007 and we will be revisiting them as they evolve to learn from their experiences.