In a WebFacing project you may have applications where you have non-WebFaced pages. For example, you may not have the DDS source, or you may want to display non-DDS screens (e.g. UIM-based screens) or system screens for which you will not have the source.
By default, all screens that are not converted with WebFacing will be rendered using dynamic data stream transformation. In the case of DDS-based screens, when each display file is first opened by the application the WebFacing project is examined to determine if it has been converted. If all records to be shown on the screen are from display files that have been converted, then the WebFaced screen is shown. Otherwise, the dynamic data stream transformation is performed on the 5250 data stream for that screen and the result displayed.
WebFacing's dynamic data stream transformation is available for both Web and Portal projects.
Dynamic data stream transformation of unconverted DDS is only available when using a V5R4 (or later) host operating system. On earlier versions of the host operating system the dynamic data stream transformation will only present UIM-based application and system screens.
In addition to dynamic data stream transformation contained in WebFacing, unconverted screens can be presented using Host Access Transformation Services (HATS) by combining a HATS project with a HATS/WebFacing project. For more information see WebFacing interoperability with HATS applications and Creating a HATS/WebFacing enabled Web project.