Abstract:

Realtime Online Interactive Application (ROIA) is a new kind of distributed application, proposed by foreign scholars in recent years, including interactive ELearning system and Massively Multiplayer Online Games (MMOG). Studies on ROIA and MMOG have been widely carried out abroad, but few literatures in this field can be found in mainland China. Firstly, the architectures of ROIA are classified systematically, and the strengths and weaknesses within each framework are analyzed. Secondly, a key issue of ROIA, named the state consistency issue, is discussed. Finally, two basic consistency models of ROIA and the consistency maintenance of C/MS are also analyzed and described.

Key words: real-time online interactive application;massively multiplayer online game;state consistency