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This work was developed collaboratively by members of the xml-dev list group. This material is made freely available in the public interest. Any use of this material must acknowledge the xml-dev list group.
new! Use multiple schema languages! No single schema language is sufficient to express all data constraints. Multiple schema languages must be used.
Here is a white paper that describes a holistic approach to versioning schemas. It asserts that Schema versioning should not be treated in isolation. Instead, Schema versioning should be part of an integrated system evolution plan.
Here is a white paper that describes a radical new way of designing schemas that will position your data for the next generation Web - The Semantic Web.
Here is a white paper that addresses the importance of identifying and documenting your Schema design objectives prior to creating a Schema. A questionnaire is provided to assist in assessing your objectives.
Download a tutorial on Best Practices. This tutorial contains a Powerpoint document for each Best Practice issue. There are fully validated examples and labs (with answers) for each issue.
All the Best Practices documents are now in PDF format.
Table of Contents
- Bertrand Poisson from CNAM in France has submitted a fifth method for implementing variable content containers, which they call "Hermaphrodite Types". Read an excellent write-up of this technique (MS Word). Thanks Bertrand and CNAM!!!
- An approach to giving a hierarchy to elements in a substitition group.
Composition versus Subclassing Creating Extensible Content Models Extending XML Schemas Should the targetNamespace be a URL or a URN? What's the best way to version schemas? Achieving Maximum Dynamic Capability in your Schemas Tutorial on XML SchemasPoint of Contact: Roger L. Costello
