Re: Abstract object class

[Jeff.Hodges@stanford.edu]

[catching up on mail here..]

> Ed Reed wrote:
> As LDAP becomes distributed, and as the namespaces LDAP servers
> are interconnected, it's obvious that different administrative domains
> will need to manage the schema over their own portion of the namespace
> independently of one another.
[snip]
> Note that even within administrative domains (corporations, for instance)
> it's vital that departments and org units within the larger namingContext
> have their own schema - it's unreasonable for the software purchased
> by Sales in NYC to extend the schema for Engineering in Denver when
> they have separate internal administrative domains with separate
> administrators and namespaces.  But both still reside within the larger
> corporate namingContext, and may need to be subject to a common
> organizational schema onto which their schema extensions are laid.

I just want to simply "second" the above requirement statement. It's clear in 
our deployment at Stanford that such capabilities are needed. And replication 
needs to play into this also.

I wasn't aware of the "content rules" notion in X.500(93). Thanks to Ed, Erik, 
and Paul for the enlightening discussion.

paulle@microsoft.com said:
> 2. Make schema immutable, but subclassing and auxiliary classing more
> flexible. Then the sales and engineering departments can have their
> own classes, while the fact that there is a class in common won't get
> lost. 

eskovgaard@geotrain.com said:
> I think that is the intent.  Being able to understand a subset of the
> information (as a client) even though the complete schema is not known
> is certainly desirable to me.  Using Inheritance and Auxiliary Object
> Classes together with a prudent selection of standard Structural
> Object Classes will ensure that. 

paulle@microsoft.com said:
> That's not what I understood Ed to be proposing. If it was, then
> there's no problem. I agree with your summary. And I prefer solution
> #2 to #1 anyway. 


I essentially agree. I'll have to go read up on the Content Rules stuff. 

Jeff