Abstract: Component interface is the only interaction between component and environment, and the design of interface affects the complexity of integration and expansion of component directly. An architecturcoriented and with performance-constraint component interface model (AOPCCllVI) was proposed. This interface model complies with encapsulalion characteristic of component and allows customer to understand the information of component,such as the topology of component,for integration and expansion of component in component interface. It also adds performance description and performance guarantee mechanism to control the component performance. The application of this model in some foundational pr伪ection has proved its effection.

Key words: Software architecture, Component, Interface, Integration, Extension, Performance constraint