Information Model v0.2 preview

[Farrukh Najmi <Farrukh.Najmi@east.sun.com>]

In the absence of time to update and distribute Information Model v0.2 I
am attaching the diagrams that show the changes in the model. I hope
that these would give you enough context to engage in reviewing the DTDs
tomorrow as well as give high level review to info model changes in
v0.2. Diagrams explained below:

object.gif
----------

Shows the Object inheritance hierarchy. Note Package is added for
clarity but out of scope for Tokyo. This diagram does not show
associations between objects.

public.gif
---------
Shows the public view of managed object and its
associations/classifications. Note this diagram does not show
inheritence relationships.

associationInstance.gif
-----------------------
Simple diagram showing an example of managed object association.

classification.gif
----------------
This is the simplified classification model in v0.2.  All nodes are
instances of ClassificationNode (was ClassificationItem).
ClassificationScheme has been replaced with a ClassificationNode with a
null parent. Classification level can be inferred by counting the steps
when traversing ancestors until root node is reached. Note that
classification could have been handled as special case of Association,
but I felt that classification was important enough in the model that it
should be sub-classed from Association allowing independent future
extensibility if needed. It is also more explicit this way.

classificationTree.gif
---------------------
Shows an example instance diagram for a classification tree. Note that
in the simplified classification model in v0.2 all nodes are instances
of ClassificationNode (was ClassificationItem)

classificationInstance.gif
-----------------------
Simple diagram showing an example of managed object classification.



--
Regards,
Farrukh

begin:vcard 
n:Najmi;Farrukh 
tel;fax:781-442-1610
tel;work:781-442-0703
x-mozilla-html:TRUE
url:www.sun.com
org:Sun Microsystems;Java Software
adr:;;1 Network Drive, MS BUR02-302;Burlington;MA;01803-0902;USA
version:2.1
email;internet:najmi@east.sun.com
fn:Farrukh S. Najmi
end:vcard