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XML Topic Maps: Creating and Using Topic Maps for the Web by Jack Park, Sam Hunting

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From ISO/IEC 13250 to XTM

This section describes the development effort undertaken to extend the ISO specification and add new features. It took one year to complete that task.

Addressing

One of the most obvious differences between the ISO topic maps specification and XTM is the fact that addressing in XTM is limited to Uniform Resource Indicators (URIs) while addressing in the ISO specification can be expressed wihirtually any kind of notation. This restriction recognizes the central role played by the Web as a worldwide network used as a common, well-defined platform on which information can be interchanged.

In ISO/IEC 13250, HyTime (ISO/IEC 10744) is used as a base for addressing. HyTime contains a very powerful addressing model based on the ...

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