IBM Screen Definition Facility II provides numerous technology and business benefits:
Compatibility and flexibility: You can design, test, implement and maintain user interfaces for applications running CICS BMS, IMS MFS, CSP/AD, ISPF and GDDM-IMD. For example, you can run Screen Definition Facility II on an MVS system and still design for a target system that runs on VM.
Application prototyping: Review the flow of panels, together with the eventual end-user of the application, before anyone writes a line of code.
Minimized re-engineering: With application prototyping, you can obtain early feedback that can be incorporated into the design of the application before it is deployed.