Abstract
In collaborative service environments, a website will provide more powerful function with lower cost just according to make some external web services collaborate together. In these websites, how to get user requirement to arrange external web services is very important. In this paper, Smart UI, a new smart user interactive model in service collaborative environment different with current simply and isolated html forms in websites is presented. In the help of interaction ontology, this model is used to interact with user friendly and intelligently, as well as it is very easy to find satisfied web services using interaction results. We believe that most users are satisfied for this interaction model, and a website using this model will get much more chance to success.