MID/MOD chaining

MFS input formatting for a workstation occurs when a message input descriptor (MID) name is provided with an input message.

The MFS message output descriptor (MOD) can supply a MID name to be used for formatting the next input message. It is the responsibility of the workstation to supply this MID name when it sends the input message. This results in supplying the MID name.

MID/MOD chaining can be accomplished with little or no intervention by the workstation operator by observing the following procedure during the design of SLU P system application programs:

Procedure

  1. Remove the MID name from the received output message header and save it for use on the next input message.
  2. Display or print the output message.
  3. Get the next operator input.
  4. Add the MID name saved in step 1 to the transaction.
  5. Send the transaction to IMS.