The <data-about> element identifies the subject of a property when the subject isn't associated with the context in which the property is specified. The property itself is expressed by the <data> element. The <data-about> element handles exception cases where a property must be expressed somewhere other than inside the actual subject of the property. The <data-about> element is particularly useful as a basis for specialization in combination with the <data> element.

Important: Do not use the <data-about> element to identify the object of a property. The @href attribute of the <data> element serves that purpose.

Content models

See appendix for information about this element in OASIS document type shells.


- topic/data-about


The full properties of a cited book can be maintained conveniently in the <prolog>:

<topic id="questions">
    <title>Questions and answers</title>
        <data-about href="urn:isbn:0156983508" scope="external">
            <data name="title">The World Doesn't End</data>
            <data name="author">
                <data name="firstname">Charles</data>
                <data name="lastname">Simic</data>
            <data name="published" datatype="year">1989</data>
            <!-- ... -->
        <!-- ... -->
        <!-- ... -->
       <lq href="urn:isbn:0156983508">In a forest of question marks ...
       <!-- ... -->


The following attributes are available on this element: Universal attribute group, Link relationship attribute group, and outputclass