catalog_19030867.xsd

<?xml version="1.0" encoding="UTF-8"?>

<!-- XML Schema Following Flat Catalog Design -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <!-- Definition of Complex Elements -->
    <!-- root element declaration-->
    <xs:element name="tuca_Root">
        <!-- complexType is used, sicne the tuca_Root has child elements -->
        <xs:complexType>
            <!-- sequence defines the elements must follow the order in xml instance -->
            <xs:sequence>
                <!-- ref shorts for reference -->
                <xs:element ref="tuca_Store"/>
                <xs:element ref="tuca_AudioInventory"/>
                <xs:element ref="tuca_Copyright"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Store reference - child element of tuca_Root element -->
    <xs:element name="tuca_Store">
        <!-- complexType is also used if an Element has both attribute & child element -->
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_StoreLogo"/>
                <xs:element ref="tuca_StoreName"/>
                <xs:element ref="tuca_Owner"/>
                <xs:element ref="tuca_Address"/>
                <xs:element ref="tuca_WebsiteAddress"/>
                <xs:element ref="tuca_ContactDetails"/>
                <xs:element ref="tuca_StoreDescription"/>
            </xs:sequence>
            <!-- An attribut reference -->
            <xs:attribute ref="source" use="required"/>
        </xs:complexType>
    </xs:element>
    <!-- tuca_StoreLogo reference - child element of tuca_Store element -->
    <xs:element name="tuca_StoreLogo">
        <!-- complexType is also used if an Element has only attribute(s) -->
        <xs:complexType>
            <xs:attribute ref="source" use="required"/>
        </xs:complexType>
    </xs:element>    
    <!-- tuca_Owner reference - child element of tuca_Store element -->
    <xs:element name="tuca_Owner">
        <!-- complexType is also used if an element has both text content & attribute(s) -->
        <xs:complexType>
            <!-- Simple element is used if an Element includes both attribute & text content -->
            <xs:simpleContent>
                <!-- extension tag extends the complexType Element by adding an attribute and declaring the dataType through base attribute for that Element -->
                <xs:extension base="xs:string">
                    <!-- default attribute allows an attribute to exist with the given value even if it misses while defining an Element -->
                    <xs:attribute ref="sex" default="Male"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Address reference - child element of tuca_Store element -->
    <xs:element name="tuca_Address">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="xs:string">
                    <!-- use attribute with required value specifies an element to must have the given attribute declared with suitable value while defining the Element  -->
                    <xs:attribute ref="country" use="required"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>
    <!-- tuca_ContactDetails reference - child element of tuca_Store element -->
    <xs:element name="tuca_ContactDetails">
        <xs:complexType>
            <xs:sequence>
                <!-- minOcuurs and maxOccurs defines the minimux and maximum occurance of an Element, unbounded means no limit -->
                <xs:element ref="tuca_TelephoneNumber" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Email"/>
            </xs:sequence>            
        </xs:complexType>
    </xs:element>
    <!-- tuca_AudioInventory reference - child element of tuca_Root element -->
    <xs:element name="tuca_AudioInventory">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_Album" minOccurs="0" maxOccurs="unbounded"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Album reference - child element of tuca_AudioInventroy element -->
    <xs:element name="tuca_Album">
        <!-- mixed attributes defines an Element to have attribute, child-Elements and text content all at once -->
        <xs:complexType mixed="false">
            <xs:sequence>
                <xs:element ref="tuca_AlbumType"/>
                <xs:element ref="tuca_Cover"/>
                <xs:element ref="tuca_Title"/>
                <xs:element ref="tuca_Genre" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Band" minOccurs="0" maxOccurs="1"/>
                <xs:element ref="tuca_Director" minOccurs="0" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Producer" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Composer" minOccurs="0" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Writer" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Artist" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_Studio" minOccurs="1" maxOccurs="unbounded"/>
                <xs:element ref="tuca_RecordCompany"/>
                <xs:element ref="tuca_ReleaseDate"/>
                <xs:element ref="tuca_Description"/>
                <xs:element ref="tuca_AudioQuality"/>
                <xs:element ref="tuca_Songs"/>
                <xs:element ref="tuca_Price"/>
            </xs:sequence>
            <xs:attribute ref="language" use="required"/>
            <xs:attribute ref="albumID" use="required"/>
            <xs:attribute ref="available" default="true"/>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Cover reference - child element of tuca_Album element -->
    <xs:element name="tuca_Cover">
        <xs:complexType>
            <xs:attribute ref="source" use="required"/>
        </xs:complexType>
    </xs:element>    
    <!-- tuca_Band reference - child element of tuca_Album element -->
    <xs:element name="tuca_Band">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_Member" minOccurs="2" maxOccurs="unbounded"/>
            </xs:sequence>
            <xs:attribute ref="origin" use="required"/>
            <xs:attribute ref="bandID" use="required"/>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Artist reference - child element of tuca_Album element -->
    <xs:element name="tuca_Artist">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="xs:string">
                    <xs:attribute ref="role"/>
                    <xs:attribute ref="refBandID" use="optional"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>
    <!-- tuca_AudioQuality reference - child element of tuca_Album element -->
    <xs:element name="tuca_AudioQuality">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_SampleRate"/>
                <xs:element ref="tuca_BitDepth"/>
                <xs:element ref="tuca_Channel"/>
            </xs:sequence>
            <xs:attribute ref="bitrate" use="required"/>
        </xs:complexType>
    </xs:element>    
    <!-- tuca_Songs reference - child element of tuca_Album element -->
    <xs:element name="tuca_Songs">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_Size"/>
                <xs:element ref="tuca_Song" minOccurs="1" maxOccurs="unbounded"/>
            </xs:sequence>
            <xs:attribute ref="duration" use="required"/>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Size reference - child element of tuca_Songs element -->
    <xs:element name="tuca_Size">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="xs:string">
                    <xs:attribute ref="format" use="required"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>
    <!-- tuca_Song reference - child element of tuca_Songs element -->
    <xs:element name="tuca_Song">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="tuca_SongTitle"/>
                <xs:element ref="tuca_Duration"/>
                <xs:element ref="tuca_SongSize"/>
            </xs:sequence>
            <xs:attribute ref="track" use="required"/>
        </xs:complexType>
    </xs:element>

    <!-- Definition of Attributes -->
    <xs:attribute name="country" type="attCountry"/>
    <xs:attribute name="source" type="xs:string"/>
    <xs:attribute name="sex" type="attSex"/>
    <xs:attribute name="language" type="xs:string"/>
    <!-- ID type defines an unique value given to an Element/Attribute in the instance document or XML file -->
    <xs:attribute name="albumID" type="xs:ID"/>
    <!-- boolean type defines an Element/Attribute value to have either true or false -->
    <xs:attribute name="available" type="xs:boolean"/>
    <xs:attribute name="origin" type="attCountry"/>
    <xs:attribute name="bandID" type="xs:ID"/>
    <xs:attribute name="role" type="attRole"/>
    <!-- IDREF references an ID value available in the XML instance, Here the IDREF is used to reference bandID attribute value -->
    <xs:attribute name="refBandID" type="xs:IDREF"/>
    <xs:attribute name="bitrate" type="xs:string"/>
    <!-- NMTOKEN specifies an Element/Attribute to have valid XML names with no spaces -->
    <xs:attribute name="format" type="xs:NMTOKEN"/>
    <xs:attribute name="duration" type="xs:time"/>
    <xs:attribute name="track" type="attTrack"/>

    <!-- Definition of Simple Elements -->
    <!-- DataTypes of text content of an Element & Attribute can be User-Defined -->
    <!-- The dataType is defined in type attribute -->
    <!-- the string type defines an element/attribut value to have string of charaters -->
    <xs:element name="tuca_StoreName" type="xs:string"/>
    <xs:element name="tuca_WebsiteAddress" type="xs:string"/>
    <xs:element name="tuca_TelephoneNumber" type="attTelephoneNumber"/>
    <xs:element name="tuca_Email" type="xs:string"/>
    <xs:element name="tuca_StoreDescription" type="xs:string"/>
    <xs:element name="tuca_AlbumType" type="xs:string"/>
    <xs:element name="tuca_Title" type="xs:string"/>
    <xs:element name="tuca_Genre" type="xs:string"/>
    <xs:element name="tuca_Member" type="xs:string"/>
    <xs:element name="tuca_Director" type="xs:string"/>
    <xs:element name="tuca_Producer" type="xs:string"/>
    <xs:element name="tuca_Composer" type="xs:string"/>
    <xs:element name="tuca_Writer" type="xs:string"/>    
    <xs:element name="tuca_Studio" type="xs:string"/>
    <xs:element name="tuca_RecordCompany" type="xs:string"/>
    <!-- date Type defines a text content to follow YYYY/MM/DD format representing date -->
    <xs:element name="tuca_ReleaseDate" type="xs:date"/>
    <xs:element name="tuca_Description" type="attDescription"/>
    <xs:element name="tuca_SampleRate" type="xs:string"/>
    <xs:element name="tuca_BitDepth" type="xs:string"/>
    <xs:element name="tuca_Channel" type="attChannel"/>    
    <xs:element name="tuca_SongTitle" type="xs:string"/>
    <!-- time Type defines a text conten to follow HH:MM:SS format representing time -->
    <xs:element name="tuca_Duration" type="xs:time"/>
    <xs:element name="tuca_SongSize" type="attSongSize"/>
    <xs:element name="tuca_Price" type="attPrice"/>
    <xs:element name="tuca_Copyright" type="xs:string"/>

    <!-- User-Defined DataTypes -->
    <xs:simpleType name="attSex">
        <xs:restriction base="xs:string">
            <!-- enumeration represents a list of data defined in base attribute of restriction Element, from which only one can be choosed -->
            <xs:enumeration value="Male"/>
            <xs:enumeration value="Female"/>
            <xs:enumeration value="Other"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attCountry">
        <xs:restriction base="xs:NMTOKEN">
            <!-- The given RegExp pattern specifies to have 2 or 3 character long String of Uppercase alphabets -->
            <xs:pattern value="[A-Z]{2,3}"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attTelephoneNumber">
        <xs:restriction base="xs:string">
            <!-- The given RegExp specifies to have a string starting with 01- and ends with 7 characters long string of Numbers  -->
            <xs:pattern value="(01\-)[0-9]{7}"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attRole">
        <xs:restriction base="xs:string">
            <xs:enumeration value="Main"/>
            <xs:enumeration value="Feature"/>
            <xs:enumeration value="With"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attDescription">
        <xs:restriction base="xs:string">
            <!-- The minLength & maxLength specifies the minimum & maximum number of characters allowed -->
            <xs:minLength value="200"></xs:minLength>
            <xs:maxLength value="1000"></xs:maxLength>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attChannel">
        <xs:restriction base="xs:string">
            <!-- The given RegExp specifies to have either of the String divided by | -->
            <xs:pattern value="Mono|Stereo|Surround"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attTrack">
        <xs:restriction base="xs:string">
            <!-- The given RegExp specifies to have a String containing 1 or 2 digits followed by another 1 or 2 digits spearated by / -->
            <xs:pattern value="[0-9]{1,2}\/[0-9]{1,2}"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attSongSize">
        <xs:restriction base="xs:string">
            <!-- The given RegExp specifies a string containing upto 3 digits long String followed by upto 2 digits long string separated by . with trailing MiB   -->
            <xs:pattern value="[0-9]{1,3}(\.)?[0-9]{0,2}( MiB)"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="attPrice">
        <xs:restriction base="xs:positiveInteger">
            <!-- the toalDigits Element specifies the exact number of digits and fractionDigits specifies number of digits after decimal point -->
            <xs:totalDigits value="4"/>
            <xs:fractionDigits value="0"/>
        </xs:restriction>
    </xs:simpleType>

</xs:schema>