You can configure user IDs for a UTM application in such a way that access to the application via a user ID is only possible with a special ID card (magnetic strip card): This can be done either via the KDCDEF statement USER Operand CARD at generation or through dynamic configuration (KC_CREATE_OBJECT, object type KC_USER).
If a user signs on via a user ID for which an ID card check is configured, the user is requested to insert the ID card in the reader. openUTM checks the ID card information. If this information agrees with the information generated in the configuration for this user ID, the user is allowed to work with this application
If an ID card is in the reader during dialog input, openUTM enters the identifier "A" in the KCAUSWEIS/kccard field of the KB header.
The user must leave the ID card in the reader until he or she has signed off from the application with KDCOFF, otherwise openUTM disconnects the connection to the terminal.
You can call the ID card information in the program units, for example using the KDCS call INFO with the "CD" (CARD) operation modifier.