<xs:element name="trl">
  <xs:annotation>
    <xs:documentation xml:lang="en">Specifies the TRL (Technology Readiness Level) of the technology according to the measurement system defined by the EC</xs:documentation>
    <xs:appinfo>
      <identifier>http://w3id.org/meta-share/meta-share/trl</identifier>
      <label xml:lang="en">TRL</label>
    </xs:appinfo>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:anyURI">
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl1">
        <xs:annotation>
          <xs:documentation xml:lang="en">Basic principles observed</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl1</identifier>
            <label xml:lang="en">TRL1</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl2">
        <xs:annotation>
          <xs:documentation xml:lang="en">Technology concept formulated</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl2</identifier>
            <label xml:lang="en">TRL2</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl3">
        <xs:annotation>
          <xs:documentation xml:lang="en">Experimental proof of concept</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl3</identifier>
            <label xml:lang="en">TRL3</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl4">
        <xs:annotation>
          <xs:documentation xml:lang="en">Technology validated in lab</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl4</identifier>
            <label xml:lang="en">TRL4</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl5">
        <xs:annotation>
          <xs:documentation xml:lang="en">Technology validated in relevant environment (industrially relevant environment in the case of key enabling technologies)</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl5</identifier>
            <label xml:lang="en">TRL5</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl6">
        <xs:annotation>
          <xs:documentation xml:lang="en">Technology demonstrated in relevant environment (industrially relevant environment in the case of key enabling technologies)</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl6</identifier>
            <label xml:lang="en">TRL6</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl7">
        <xs:annotation>
          <xs:documentation xml:lang="en">System prototype demonstration in operational environment</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl7</identifier>
            <label xml:lang="en">TRL7</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl8">
        <xs:annotation>
          <xs:documentation xml:lang="en">System complete and qualified</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl8</identifier>
            <label xml:lang="en">TRL8</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/trl9">
        <xs:annotation>
          <xs:documentation xml:lang="en">Actual system proven in operational environment (competitive manufacturing in the case of key enabling technologies; or in space)</xs:documentation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/trl9</identifier>
            <label xml:lang="en">TRL9</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
</xs:element>