This paper proposes a Reuse-Oriented Process Component Representation framework for the description and classification of Process Components (PCs). The key features of our approach are the division of process component descriptions into a goal-oriented PC?s General Information Description (PGD), an implementation-oriented PC?s Specification Description (PSD) and an improvement-oriented PC?s Data Description (PDD). A facet-based PC classification scheme and an XML-based process description method is presented. A retrieval model based on tree-containment matching is given, which can improve the recall while maintaining a high level precision. Finally, a reuse based process and project management system (P2MS) to support process improvement and control is also introduced in this paper.