IMS Message Format Service
The following topics describe some IMS MFS facilities that specifically apply to the SLU P system.
Designing MFS for the workstation environment
Both input and output data can be processed by MFS. The exit for the Input Transaction edit routine is available to provide additional editing capabilities.
MID/MOD chaining
MFS input formatting for a workstation occurs when a message input descriptor (MID) name is provided with an input message.
MFS output formatting for the SLU P system
MFS can be used to format pages, produce standard headings and footings, and provide forms control. Without MFS, the message processing program (MPP) or the controller application program must provide these functions.
MFS message recovery
Input messages processed by MFS are edited before the message is queued and logged. Output messages are edited immediately prior to transmission; therefore, for recovery purposes, an input message is formatted by MFS and an output message is formatted by the IMS application program.
MFS control functions (Finance)
The operators of devices using MFS can use a number of control functions.
MFS control functions (SLU P)
The following device-level MFS control functions are available to logical units defined as SLU P.
MFS paging and BID options
The BID option provides output protection but has a high performance cost (an extra line flow for each message).
Parent topic:
IMS facilities used for SLU P and Finance
Related concepts
IMS Message Format Service
MFS message formats