Blog: David Loshin

Main

August 16, 2005

XML Schemas and Strict Typing - First thoughts

Do the structures described within XML schemas correspond to classes and objects described in Java or C++, or to entity relationship models? There seems to be a little bit of a debate on the topic. As an example, there does seem to be a correlation, which leads to the ability to automate the generation of Java classes that mimic XML schemas (see The Sun Java XML Binding Compiler for details).

On the other hand, the flexibility in defining schemas allows a clever (albeit, devious) practitioner to define structures that would challenge any object-oriented programmer.

I am currently looking at a project where we are reviewing the way XML schemas are defined in a way that eases the design of its supporting software. I have some definite ideas about this, but I'm interested in hearing some ideas from you readers. I will follow up on this topic, perhaps in an upcoming article.

Posted by at 9:07 PM | Permalink | Comments (0)

August 9, 2005

Federal Enterprise Architecture, Data, and Metadata

Occasionally, I attend meetings on behalf of one of my government clients. Today I was at one with a set of mixed topics, although the typical agendas focus on metadata. The usual meeting attendees are individuals involved in deploying metadata registries based on the ISO/IEC 11179 standard on Metadata Registries, but today's meeting featured a presentation by Mike Daconta, who is spearheading the effort to refine the Federal Enterprise Architecture's Data Reference Model.

What is interesting about the FEA DRM, as it is called, is that it is the last piece of the Federal Enterprise Architecture to b eput in place. Confused that an enterprise architecture can be defined without focusing on data first? Join the crowd...

Continue reading "Federal Enterprise Architecture, Data, and Metadata" »

Posted by at 7:22 PM | Permalink | Comments (1)