Abstract
Symbiotic computing is considered as a platform of post ubiquitous society. A system based the computing environment is called "symbiotic system", and it is necessary to discuss with what is that image and which design methodology fit well. In this paper, I discussed the systems design methodology which fit in symbiotic system. First, I reviewed classification and stage of information systems, and confirmed that "symbiotic" "emergent" "social role" were key words about modern information systems and that development. Then, I examined critical factors of the systems design at symbiotic system. And it was found from the result that interactive and context between designers and users, systems and human. Lastly, I suggested that contextual design a method of systems design fit in well with symbiotic system.
