Research of software reuse technology based on component

This paper highlights software reuse technology and classifies. The emphasis of the paper presents the model of component and Studies COTS. As the result, this paper points out component reuse is fine granularity´s reuse in construction software system. But during building “system in system” process, it´s impossible that developers do everything starting from scratch. COTS (Commercial off the shelf) software should be selected since COTS software has more coarse granularity than component does. Software reuse has been becoming more important under network environment because the applications based on Internet are increasingly popular. Software reuse can be implemented by agent-oriented methodology under network environment. Agent can search and match components autonomously on internet.