<div dir="ltr"><div>(I've dropped 'interop' from this discussion)</div><div><br></div>Andreas, thank you for this ALMA document, it is extremely valuable.<div><br></div><div>Grid, I had a talk with Andreas and we (perhaps hastily) concluded that the approach to versioning XML schema is roughly the same in both documents. However, one item that the IVOA version has not tackled is "instance XML"--documents which have been created in the past and persisted. (For example, historical UWS job representations in a database.)</div><div><br></div><div>I don't think we've encountered the problem of having non-backwards compatible XML instances yet, but we should keep Andreas' document in mind if/when we do. XML versioning policy is complicated work so having such a resource is valuable.</div><div><br></div><div>Brian</div><div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Oct 31, 2015 at 9:59 AM, Andreas Wicenec <span dir="ltr"><<a href="mailto:andreas.wicenec@uwa.edu.au" target="_blank">andreas.wicenec@uwa.edu.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
just wanted to ingest some thoughts here, which we had put together a number of years ago for ALMA.<br>
Maybe you’ll find it useful.<br>
<br>
Cheers,<br>
Andreas<br>
<br>
</blockquote></div><br></div></div></div>