# Using dynamic models

To use dynamic models XmlDataSource tag must be replaced by datamodel. The datamodel tag has the following attributes:

<div id="bkmrk-attribute-usage-id-z"><table class="confluenceTable tablesorter tablesorter-default stickyTableHeaders" role="grid"><thead class="tableFloatingHeaderOriginal"><tr class="tablesorter-headerRow" role="row"><th aria-disabled="false" aria-label="Attribute: No sort applied, activate to apply an ascending sort" aria-sort="none" class="confluenceTh tablesorter-header sortableHeader tablesorter-headerUnSorted" data-column="0" role="columnheader" scope="col" tabindex="0"><div><div>**Attribute**</div></div></th><th aria-disabled="false" aria-label="Usage: No sort applied, activate to apply an ascending sort" aria-sort="none" class="confluenceTh tablesorter-header sortableHeader tablesorter-headerUnSorted" data-column="1" role="columnheader" scope="col" tabindex="0"><div><div>**Usage**</div></div></th></tr></thead><tbody aria-live="polite" aria-relevant="all"><tr role="row"><td class="confluenceTd">id

</td><td class="confluenceTd">ZK Identifier

</td></tr><tr role="row"><td class="confluenceTd">className

</td><td class="confluenceTd">root DataNode class name

</td></tr><tr role="row"><td class="confluenceTd">src

</td><td class="confluenceTd">XML resource name for XML dynamic data model</td></tr><tr role="row"><td class="confluenceTd" colspan="1">rootNode</td><td class="confluenceTd" colspan="1">Root node type for dynamic data model</td></tr></tbody></table>

</div>className usage is not compatible with src and rootNode attributes.

rootNode attribute is mandatory when using XML dynamic data models.