Recently, the importance of quality control on the online collaboration system is increasing, since it is realized that many participants do not guarantee the quality of online collaboration's output anymore. Hence in this paper, we propose the framework of quality control in order to assure the quality of output from online collaboration system. The proposed framework provides the solution strategies to overcome the challenges of current collaboration systems. To do that, first of all we define the basic process (create, initiate, discuss, complete) of the online collaboration system based on wiki-based system or open source project, and then we find the challenges in each online collaboration process, and propose the effective strategy to overcome these challenges with reference cases including Wikipedia, OSS project, etc.