Re: W-19 CAP Group Definitions

[Bob Mahoney <bobmah@xxxxxxx>]

We need to change our definition of groups.

We now realize there are two types of groups, Users and Calendars.

Definitions:

Users are represented as UPNs.  A given UPN can be either a Calendar 
User (CU) or a User Group (UG).  We do not want to continue using the 
term Calendar Group (CG).   By looking at a UPN, a CUA cannot 
determine whether it is a CU or a UG.   Only the CS can expand a UG 
into a list of CUs.

Calendars are represented as CSIDs.  A given CSID can be either a 
Calendar (C), a Calendar Collection (CC), or a Resource Calendar 
(RC).  By looking at a CSID, a CUA cannot determine whether it is a 
C, CC, or RC.  Only the CS can expand a CC into a list of Cs or RCs.

(There is no syntactic difference between a C and RC. They are only 
different in the semantic content that is imposed by the data that 
they contain and by their calendar properties.)


Commands:

We want to keep the EXPAND command from yesterday.  EXPAND will 
accept a CSID and return one or more Cs or RCs.  More than one C or 
RC returned implies that the CSID was a CC.

We want to add a new command called LOOKUP, which will accept a UPN, 
and returns one or more CSIDs.  More than one CSID returned implies 
that the UPN was a UG.

The reverse lookup from a CSID to a UPN is accomplished by looking at 
the owner property of the calendar.

Read this aloud- it will help.  We'll follow up later with revisions 
to yesterday's text.

-Bob