<xs:simpleType name="statusType">
    <xs:restriction base="xs:string">
        <xs:enumeration value="in progress">
            <xs:annotation>
                <xs:documentation>An activity that has started but is not finished yet.</xs:documentation>
            </xs:annotation>
        </xs:enumeration>
        <xs:enumeration value="complete">
            <xs:annotation>
                <xs:documentation>An activity that is complete. Possibly waiting for approval.</xs:documentation>
            </xs:annotation>
        </xs:enumeration>
        <xs:enumeration value="approved">
            <xs:annotation>
                <xs:documentation>An activity that is complete and approved.</xs:documentation>
            </xs:annotation>
        </xs:enumeration>
        <xs:enumeration value="planned">
            <xs:annotation>
                <xs:documentation>An activity that is planned but not yot beginned.</xs:documentation>
            </xs:annotation>
        </xs:enumeration>
    </xs:restriction>
</xs:simpleType>

• statusType
• status
• status
• status