Whilst computers can and do contribute significantly to improving our use of sustainable materials and practices, computers themselves are responsible for the consumption of large amounts of such resources contributing extensively to hazardous waste. The aim of this study is to develop a model to collect data on an organisations specific approach to implementing several types of end-user computing devices, which through key lifecycle stages of each device and, through comparison with a set of benchmarks, will identify areas where the organisation might improve its performance. The key objective will be to analyse the implementation of this model within a number of organisations and identify, through feedback gained from each organisation, whether there has been a net gain in understanding, policy, culture or practice following the implementation.