<!-- <any/> -->

</model>

<constraint>

<allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal')]/@name">

&allowed-values-control-group-property-name;

<enum value="status">The status of a <code>control</code>. For example, a value of 'withdrawn' can indicate that the <code>control</code> has been withdrawn and should no longer be used.</enum>

</allowed-values>

<allowed-values target="prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='status']/@value">

<enum value="withdrawn">The control is no longer used.</enum>

</allowed-values>

<allowed-values target="link/@rel" allow-other="yes">

<enum value="reference">The link cites an external resource related to this control.</enum>

<enum value="statement">A set of control implementation requirements.</enum>

<enum value="guidance">Additional information to consider when selecting, implementing, assessing, and monitoring a control.</enum>

<enum value="assessment" deprecated="1.0.1">**(deprecated)** Use 'assessment-method' instead.</enum>

</allowed-values>

<allowed-values target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='statement']//part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal')]/@name">

<enum value="item">An individual item within a control statement.</enum>