In pursuit of family harmony: Introducing the JATS Compatibility Meta Model

JATS is an Open Standard. Users may modify it by adding or removing elements and attributes to suit their needs. Some publishers have extended (added to) JATS based on their own requirements. And there are some public extensions like BITS, STS, and Taxpub. Users expect significant efficiencies from vocabularies based on JATS, including the ability to intermingle the documents in databases, to use tools created for JATS for their new vocabulary with minimal additional work, and to adopt rendering/formatting applications and change only those aspects specific to the new vocabulary. Some model changes create compatible documents, which can interoperate with JATS documents gracefully. But some model changes are disruptive. We discuss what types of changes to the JATS models can be integrated into existing XML environments and which may be disruptive. We propose a set of criteria to evaluate whether a proposed change will be seamless or might cause problems.

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Circling in on the JATS Compatibiliy Meta-Model

The JATS Meta-Model was developed to guide people who want to customize JATS to meet local needs and have their JATS-based vocabularies work gracefully with existing JATS-based infrastructure. From analyzing content models to defining “social behaviors” of XML elements, the process of defining the JATS Compatibility Meta-Model was rarely straightforward and very often led us to surprising conclusions. Why, for instance, is whether or not something is metadata not a defining property of compatibility? This paper aims to explain the process and thinking behind the model—how we came to the conclusions about compatibility and what we even mean by compatibility. We’ll look at some of the assertions we started absolutely knowing to be important, and discuss why they’re ultimately not in the Meta-Model. By examining the process behind the model and sharing our successes and failures, we hope to improve understanding of the model and its broader implications.

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