>R/O is stronger than refreshable, but neither is stronger than >reentrant, since neither implies serialization.
It is true that read-only and refreshable do not imply serialization. But that doesn't speak towards what I was thinking of as "stronger". You can have a reentrant module that is not refreshable (as it can self-modify with proper serialization, of couse that is not a great thing to do). I think you cannot have a refreshable module that is not reentrant, and I think refreshable implies must be read-only. So doesn't that make refreshable stronger than reentrant? Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

