From: Jim Whitehead <ejw@ics.uci.edu> To: Versioning <ietf-dav-versioning@w3.org> Date: Thu, 1 Apr 1999 17:04:27 -0800 Message-ID: <004b01be7ca4$c1304740$d115c380@ics.uci.edu> Subject: Re: Version issues -----Original Message----- From: Geoffrey M. Clemm [mailto:gclemm@tantalum.atria.com] Sent: Sunday, March 14, 1999 7:15 PM To: Bradley.Sergeant@merant.com Cc: BCragun.ORM2-1.OREM2@gw.novell.com; jamsden@us.ibm.com; ckaler@exchange.microsoft.com; dgd@cs.bu.edu; ejw@ics.uci.edu Subject: Re: Version issues I still vote for two levels. I believe there is a minimal level that we can get people to agree on. I also believe there is a maximal level that we can get people to agree on. Finding an intermediate level that is right for more than a couple of vendors seems unlikely to me, and I'd hate to spend too much time trying to find one. In particular, I find it much more likely that if we carefully design the maximal features to be orthogonal, then vendors can pick the subset of those features that get them to where they need to be, while still maintaining a reasonable degree of interoperability based on the shared minimal feature set. Another way of phrasing it is that I see the definition of these intermediate levels to be a prime candidate for the more informal process that JimA has described for standard properties. Cheers, Geoff From: Bradley.Sergeant@merant.com I would support a three level model such as Chris is suggesting. From my experiance it matches a rough segmentation of the market: Low, Medium, High. I can understand resistance to N levels, especially if they are perceived as arbitrary. My opinion is that three levels are just about right to capture the various market needs. On the other hand, the benefits of going to a three level model diminish if it does not discourage mixed-level implementations. --Sarge