Keywords › SEGMENT Keyword—Field Segments

SEGMENT Keyword—Field Segments

Valid on z/OS, z/VSE, and z/VM.

Use the SEGMENT keyword to:

• Assign fields to a specific segment. You cannot add user‑defined fields to system‑defined segments.
• List data about fields in a specific segment.

This keyword has the following format:

TSS ADDTO|LIST(FDT) SEGMENT(segmentname)

SEGMENT

Specifies the name of the segment.

Range: 1 to 8

Default: BASE

The predefined CA Top Secret segments are:

• ALL
• BASE
• CICS
• DCE
• DFP
• DLFDATA
• IMS
• LANGUAGE
• NETVIEW
• OPERPARM
• SESSION
• TSO
• WORKATTR
• z/OS

This keyword is used with:

• The commands REPLACE, ADDTO, and LIST
• The ACID types ACID, FDT, and USER
• MISC1(RDT) authority