hotfix method allowed-value

src/metaschema/oscal_assessment-common_metaschema.xml

@@ -71,7 +71,7 @@
          <has-cardinality target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('objective','assessment-objective')]" max-occurs="1" />
          <has-cardinality target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('assessment','assessment-method')]/prop[has-oscal-namespace(('http://csrc.nist.gov/ns/oscal','http://csrc.nist.gov/ns/rmf')) and @name='method']" min-occurs="1" max-occurs="1" />
          <has-cardinality target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('assessment','assessment-method')]/part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('objects','assessment-objects')]" min-occurs="1" max-occurs="1" />
-         <has-cardinality target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('objective','assessment-objective')]/prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='method']" min-occurs="1" />
+         <has-cardinality id='objective-has-method' target="part[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name=('objective','assessment-objective')]/prop[has-oscal-namespace('http://csrc.nist.gov/ns/oscal') and @name='method']" min-occurs="1" />
       </constraint>
    </define-assembly>
    <define-assembly name="assessment-method">

src/metaschema/shared-constraints/allowed-values-control-group-property-name.ent

@@ -1,3 +1,4 @@
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="label">A human-readable label for the parent context, which may be rendered in place of the actual identifier for some use cases.</enum>
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="sort-id">An alternative identifier, whose value is easily sortable among other such values in the document.</enum>
 <enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="alt-identifier">An alternate or aliased identifier for the parent context.</enum>
+<enum xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0" value="method">its an assement method.</enum>