Requirements for a component framework of future ubiquitous computing

System software for future computing environments is becoming more complex and heterogeneous. Portability is becoming one of the important properties of future system software. Component-based systems contribute to the portability issues. However component behaviors cause dependencies among components and thus prevent consistent system compositions. We have built a component-based Java virtual machine and tried three configurations with components in order to investigate the inter-component dependencies and the effect of the component behaviors. Also, this paper proposes requirements for a component framework for future ubiquitous computing.