A cyber space, which is a virtual space shared by persons who are connected by the advanced computer communication network technology, has been studied, in order to satisfy various kinds of human activities in the real society. As one of concepts of the cyber space, a concept of Human-Agent Symbiotic Space was proposed to develop a well-supported cyber space in our project based on the ADIPS framework. We are developing a cyber office, which is a virtual environment to support activities of distributed office workers, based on an experiment system. In this paper, we discuss a view model of agents to develop user interface system among persons in the real society and agents in the agent society to realize Human-Agent Symbiotic Space.