[Excerpt] CBR programmes are founded on basic ideas or concepts that vary significantly between countries and organizations. These ideas and concepts change through time as new information is obtained. Often trial-and-error experiences prove that the initial ideas were wrong. One of the best ways of examining the effectiveness of CBR programmes, and the concepts on which they are based, is through evaluation. This chapter draws on our experiences in Solo, Indonesia at the Community Based Rehabilitation Development and Training Centre (CBRDTC) to describe a process where changes in programmes and concepts have resulted from evaluation. This will hopefully help others to learn ways to change their own ideas, concepts and CBR programmes.