Option 3.1 enables you to view the following VTAM Dialog Facility information:
The ACB identifies the VTAM application ID of the VDF.
The VTAM Dialog Facility (VDF) is a set of services set up to manage the dialogue between 3270-type display terminals running within a native VTAM (non-TSO) environment and applications running within an SFF operating environment. Thus the VDF allows users in non-TSO environments access to the Beta products.
With extensions provided via the CICS and IMS Access Facilities (CAF and IAF) Beta products can also be accessed from CICS and IMS operating environments. The VDF is the basic component for the operation of the Product Enhancement Facilities VAF, CAF, and IAF.