IMS uses two methods to edit and format messages to and from terminals: Message Format Service (MFS) and basic edit routines. IMS also provides exit routines to edit:
• Input and output from a terminal
• Transaction codes
• Input message fields
• Input message segments
• Message switching
This chapter presents an overview of MFS and the IMS basic edit function, introduces MFS control blocks for message formatting, and summarizes the responsibilities of the MFS administrator.
In This Chapter
MFS is an IMS facility that creates and formats transaction input and output metadata to support device-independent application programming. IMS ...