INTERACTIVE SCALING CONTROL MECHANISM FOR WORLD-WIDE-WEB SYSTEMS

WWW latency can be reduced by scaling down of large-sized objects such as images and video. Thus, WWW object scaling systems need to provide useful user interface in order to take advantage of the latency reduc tion. This paper proposes VSCM (Virtual URL-based Scaling Control Mech anism) to provide user interface for flexible scaling control. VSCM co ntrols scaling of WWW objects at proxy servers. The user interface bas ed on VSCM enables a user to choose desired quality and size of the ob jects interactively. VSCM works with any server and any browser using standard HTTP and HTML. Furthermore, VSCM is applicable not only to ob ject scaling, but to any object transformation with flexible navigatio n of the WWW. (C) 1997 Published by Elsevier Science B.V.