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Distributed Computing Environment (DCE) has been in development for about five years but has only been widely used in the last two years. It consists of a number of services that have been selected from current proprietary distributed facilities and integrated so that they work together. Together these services form an architecture for distributed computing that enables users to carry out the new, cheaper operations they require with the interoperability, reliability and security standards of mainframe computers. The facilities provided by DCE are often reviewed from either the perspective of reliability or the perspective of interoperability. This paper reviews the facilities of DCE from the perspective of change. An architecture is proposed which will support the evolution of information systems