Although the networking techniques are developing amazingly fast, there are still rooms for more advanced applications and convenient services to be discovered. We have established an advanced intelligent multi-agent (more) framework with various types of service agents cooperating and serving users on the Internet. For forming consistent business perspectives among agents, we propose a flexible knowledge hierarchy to model the problems at hand. To assist the service provider produces transient user interfaces for interacting with users, we also propose a Knowledge Query Interface Script (KQIS), to dynamically generate user interfaces on the client. This research adopts several applied techniques, like KQML and Jess.