<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

    <xs:element name="explicit-failures-markup">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="mark-toolset" minOccurs="0" maxOccurs="unbounded"/>

                <xs:element ref="library" minOccurs="0" maxOccurs="unbounded"/>

                <xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>

            </xs:sequence>

        </xs:complexType>

    </xs:element>

    <xs:element name="mark-toolset">

        <xs:complexType>

            <xs:sequence>

                <xs:element name="title" type="xs:string" minOccurs="0"/>

                <xs:element name="description" type="xs:string" minOccurs="0"/>

            </xs:sequence>

            <xs:attribute name="name" type="xs:string" use="required"/>

            <xs:attribute name="status" type="xs:string" use="required"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="library">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="mark-unusable" minOccurs="0" maxOccurs="unbounded"/>

                <xs:sequence>

                    <xs:choice minOccurs="0" maxOccurs="unbounded">

                        <xs:element ref="test"/>

                        <xs:element ref="mark-expected-failures"/>

                    </xs:choice>

                </xs:sequence>

            </xs:sequence>

            <xs:attribute name="name" type="xs:string" use="required"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="mark-unusable">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="toolset" maxOccurs="unbounded"/>

                <xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>

            </xs:sequence>

        </xs:complexType>

    </xs:element>

    <xs:element name="test">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="mark-failure" minOccurs="0" maxOccurs="unbounded"/>

                <xs:element ref="toolset" minOccurs="0"/>

                <xs:element ref="note" minOccurs="0"/>

            </xs:sequence>

            <xs:attribute name="name" type="xs:string" use="required"/>

            <xs:attribute name="category" type="xs:string"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="mark-expected-failures">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="test" maxOccurs="unbounded"/>

                <xs:element ref="toolset" maxOccurs="unbounded"/>

                <xs:element ref="note"/>

            </xs:sequence>

            <xs:attribute name="reason" type="xs:string"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="mark-failure">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="toolset" maxOccurs="unbounded"/>

                <xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>

            </xs:sequence>

        </xs:complexType>

    </xs:element>

    <xs:element name="note">

        <xs:complexType mixed="true">

            <xs:sequence>

                <xs:any processContents="skip" minOccurs="0" maxOccurs="unbounded"/>

            </xs:sequence>

            <xs:attribute name="refid" type="xs:string"/>

            <xs:attribute name="author" type="xs:string"/>

            <xs:attribute name="date" type="xs:string"/>

            <xs:attribute name="id" type="xs:string"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="toolset">

        <xs:complexType>

            <xs:attribute name="name" type="xs:string" use="required"/>

        </xs:complexType>

    </xs:element>

</xs:schema>