I'm sure you're right (I've heard that the approaches are surprisingly different), but why would you need to know all three, unless you're going to a vendor? I've heard of shops with two (typically trying to get to one), but is it common to have all three??
-----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of David Spiegel Sent: Thursday, February 5, 2026 2:13 PM To: [email protected] Subject: Re: Cross Posted Hi Len, Your statement is somewhat naive. RACF has a hierarchical structure (Users and Groups) TSS is user-centric, unlike the other 2. ACF2 has a 24-Byte UID String. G-d help you if it is not designed properly. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
