<xs:attributeGroup name="thicknessParameters">
    <xs:attribute name="thickness" type="positiveValue">
        <xs:annotation>
            <xs:documentation>Material thickness as approved by the classification society according to steel drawings. In case of CSR-vessels this value is called
					<em>Gross Thickness Offered</em>.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="replacementThickness" type="positiveValue">
        <xs:annotation>
            <xs:documentation xml:lang="en">Material thickness to be used for replacement. If not set,
					<code>builtThickness</code>can be used instead.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="builtThickness" type="positiveValue">
        <xs:annotation>
            <xs:documentation xml:lang="en">Actual material thickness to be built according to the steel drawing submitted to the classification society for approval. If not set,
					<code>thickness</code>can be used instead. For CSR-vessels this value can be used to calculate the
					<em>voluntary thickness addition</em>as difference between builtThickness and thickness. Any change to this value will affect maxDiminution in case of standard class rules.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="maxDiminution" type="positiveValue">
        <xs:annotation>
            <xs:documentation xml:lang="en">Maximum allowed material diminution as defined by regulations of the class society. Only used for standard class rules (non-CSR vessels). If not set, the difference between
					thickness and steelRenewal can be used instead.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="steelRenewal" type="xs:double">
        <xs:annotation>
            <xs:documentation source="IACS UR S31" xml:lang="en">Material thickness at which plate or stiffener must be replaced. Used for CSR-vessels and side shell frames in bulk carriers built in accordance to IACS UR S31. In case of CSR-vessels this value
					is called
					<em>Renewal Thickness</em>
            </xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="coatingRenewal" type="xs:double">
        <xs:annotation>
            <xs:documentation source="IACS UR S31" xml:lang="en">Material thickness at which coating must be renewed. Applicable to side shell frames in bulk carriers built in accordance to IACS
					UR S31.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
</xs:attributeGroup>