DITA as information architecture can be seen as a set of best practices for topic-oriented authoring. Besides providing a set of DTDs and rules for authoring, DITA also defines a way to design new information structures customized through custom semantics. This is achieved by process of specialization.
Specialization opens a new dimension for customizing DITA to needs of different enterprises. But doing a valid specialization is not a trivial process. It requires rather deep understanding of DITA internals and command in technologies like DTD, XML Schema and s.o.
But even with sufficient knowledge of DTD (or XML Schema) coding, doing a valid specialization requires knowledge of certain DITA principles and rules. Just designing a valid DTD will not necessarily mean that you have a valid DITA model. More on Specializations can be read here: http://docs.oasis-open.org/dita/v1.0/archspec/ditaspecialization.html
This article discusses some common problems and pitfalls people face when they do DITA 1.1 specializations . (more…)