Requirements evolve, not only during system development but also after a system has been installed. The aim of the work on the EVE (EVolution Engineering) project is to develop practi-cal methods for dealing with requirements evolution. This pa-per presents the early output from our work-the EVE frame-work for requirements evolution. The EVE framework is com-prised of two components: a meta-model and an associated process model. The EVE meta-model captures a set of model-ling concepts in requirements evolution, including change, impact, risk and viewpoint. The EVE process model provides technologists with a framework for handling the emergence of new or changing requirements during the lifetime of a system. The paper illustrates the EVE framework on a simple example, and highlights the importance of social and environmental re-sponsibility in requirements evolution.