BD-UIMS:How It Supports Semantic Feedback and Direct Manipulation

In this paper we present some results from our research on representation methods an architectural model of UIMS,suitable for accommodating various interactive styles.By roughly describing an experimental system of BD-UIMS,we lay emphasis on how to support irect manipulation and semanticfeedback,Particular attention is given to a simple conceptual model of user interface as well.Based on this model,the designing process of user interface is rather easy.Although current work is under DOS environment,the approach of transplanting it to UNIX is being developed.