Performability evaluation of network humanoid robot system on ubiquitious network

Various types of network robots will be created through linkage between robots and ubiquitous networks. Subsequently, multifaceted and diversified services would be realized through collaboration and interactions among robots. So, it is very important to evaluate the performance of the network robots system. In the past, most modeling work kept performance and dependability separate. Initially, the dependability of the system might have been satisfied, and then the performance has overly optimistic assessment. In this paper, firstly, we introduce our developed network humanoid robot system. Secondly, to improvements on this lead to the design of degradable systems such as our network humanoid robot system, we propose a performability model of the system and then evaluate the performability of our network humanoid robot system.