A Floor Control Mechanism for Collaborative Computing

• Main Authors: Wang, Hsi-Tsung, 王錫琮
• Other Authors: Chi-Ming Chung
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/65546172650583221989

碩士 === 淡江大學 === 資訊工程學系 === 86 === Due to the advances of computer and network technologies, the computer, communication, and consuming electronics are tightly integrated. Computer Supported Cooperative Work (CSCW), a new group working environment, is one of such products, which connects people located apart but works as together. In this manner, the working efficiency can be improved. To the best of our knowledge, most systems are working in free mode, i.e. no floor control, or in a turn taking mode. As a result, conflicts may occur or participants work in a restricted way. Thus, an effective way in dealing with this issue is required. In this thesis, we propose a floor control mechanism for text co-editing in CSCW. This mechanism is used to resolve the multi- participants editing conflicts and reduce the race condition. In our work, we analyze the text-editing behavior and then design a set of operations. Based on these operations, a conflict- resolving mechanism is developed, which can effectively manipulate the conflict areas and prevent unnecessary undo processes. The algorithm works as follows: there are a received queue and a finished queue. The received queue is in charge of buffering the receiving messages. The finished queue is used to dealing with data generated from local host. By comparing these two queues, if a conflict is occurred, the designed operations will be applied to resolve the conflict or precede the undo process. In this manner, a highly efficient working environment is established.