<xsd:element name="interestCalculation">
    <xsd:annotation>
        <xsd:documentation xml:lang="en">Specifies the calculation method of the interest rate leg of the equity swap. Includes the floating or fixed rate calculation definitions, along with the determination of the day count fraction.</xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:sequence>
            <xsd:choice>
                <xsd:element name="floatingRateCalculation" type="FloatingRateCalculation">
                    <xsd:annotation>
                        <xsd:documentation xml:lang="en">The floating rate calculation definitions</xsd:documentation>
                    </xsd:annotation>
                </xsd:element>
                <xsd:element name="fixedRate" type="xsd:decimal">
                    <xsd:annotation>
                        <xsd:documentation xml:lang="en">The calculation period fixed rate. A per annum rate, expressed as a decimal. A fixed rate of 5% would be represented as 0.05.</xsd:documentation>
                    </xsd:annotation>
                </xsd:element>
            </xsd:choice>
            <xsd:element name="dayCountFraction" type="DayCountFractionEnum">
                <xsd:annotation>
                    <xsd:documentation xml:lang="en">The day count fraction.</xsd:documentation>
                </xsd:annotation>
                <!--
              <xsd:complexType>
                <xsd:simpleContent>
                  <xsd:extension
                   base="DayCountFraction">
                    <xsd:attribute
                     default="http://www.fpml.org/spec/2000/day-count-fraction-1-0"
                     name="dayCountFractionScheme"
                     type="xsd:normalizedString"/>
                  </xsd:extension>
                </xsd:simpleContent>
              </xsd:complexType>
              -->
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
</xsd:element>