This paper presents a new approach using X.500 model for distributed sottware configuration management. It discusses an integrated software configuration management environment, ScmEngine, being built at the University of Minnesota. Large software usually has many versions, undergoes frequent changes, and could be developed concurrently by groups of programmers at different sites. In ScmEngine all information needed for software configuration management is stored using an uniform representation in a distributed repository built with X.500 model, and the various documentation and views of the software artifacts can be generated automatically using configuration tools. The innovative capabilities of ScmEngine with these tools are 1) Distributed configuration management and version control. 2) Uniform sottware artifacts representation over a distributed context 3) Inter-relation and traceability maintenance anmng software artifacts 4) Tools repository and integration using tool composition scenarios.