RFC 7970, "The Incident Object Description Exchange Format Version 2", November 2016

Errata ID: 5543
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Takeshi Takahashi
Date Reported: 2018-11-04
Verifier Name: Alexey Melnikov
Date Verified: 2018-11-05

Section 8 says:

    <xs:element name="Confidence">
      <xs:complexType>
        <xs:attribute name="rating"
                      type="confidence-rating-type" use="required"/>
        <xs:attribute name="ext-rating"
                      type="xs:string" use="optional"/>
      </xs:complexType>
    </xs:element>

It should say:

    <xs:element name="Confidence">
      <xs:complexType>
        <xs:simpleContent>
          <xs:extension base="xs:float">
            <xs:attribute name="rating"
                          type="confidence-rating-type" use="required"/>
            <xs:attribute name="ext-rating"
                          type="xs:string" use="optional"/>
          </xs:extension>
        </xs:simpleContent>
      </xs:complexType>
    </xs:element>

Notes:

Section 3.12.5 says as follows:
"The content of the class is of type REAL and specifies a numerical
assessment in the confidence of the data when the value of the rating
attribute is "numeric". Otherwise, this element MUST be empty."

The current schema does not allow the confidence class to have the content (REAL type), thus the correction (note the addition of "<xs:extension base="xs:float">") is proposed.

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