WDSc: WebFacing 5250 Applications with WebSphere Development Studio The IBM WebFacing tool is a component of the WebSphere Development Studio. It allows you to quickly convert your DDS display file source members so that the user interface of your 5250 applications can run in a browser. WebFacing Deployment with HATS Technology (WDHT) is IBM's strategic refacing offering for System i. Find out why IBM integrated these two great refacing tools. Learn what WDHT makes possible for HATS applications and WebFacing applications. Take away some tips to get started.