<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
	<xs:complexType name="BuildingType">
		<xs:sequence>
			<xs:element ref="BuildingId"/>
			<xs:element name="Storey" type="StoreyType" maxOccurs="3"/>
		</xs:sequence>
	</xs:complexType>
	<xs:element name="BuildingId" type="xs:string"/>
	<xs:element name="Project">
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="ProjectName"/>
				<xs:element name="Site" type="SiteType"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:element name="ProjectName" type="xs:string"/>
	<xs:complexType name="SiteType">
		<xs:sequence>
			<xs:element ref="SiteName"/>
			<xs:element name="Building" type="BuildingType" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>
	<xs:element name="SiteName" type="xs:string"/>
	<xs:complexType name="SpaceType">
		<xs:sequence>
			<xs:element ref="usage"/>
		</xs:sequence>
		<xs:attribute name="SpaceType" use="required">
			<xs:simpleType>
				<xs:restriction base="xs:string">
					<xs:enumeration value="entrance"/>
					<xs:enumeration value="hygien"/>
					<xs:enumeration value="kitchen"/>
					<xs:enumeration value="room"/>
				</xs:restriction>
			</xs:simpleType>
		</xs:attribute>
		<xs:attribute name="SpaceFloorArea" use="required">
			<xs:simpleType>
				<xs:restriction base="xs:integer"/>
			</xs:simpleType>
		</xs:attribute>
	</xs:complexType>
	<xs:complexType name="StoreyType">
		<xs:sequence>
			<xs:element ref="StoreyLevel"/>
			<xs:element name="Space" type="SpaceType" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>
	<xs:element name="StoreyLevel" type="xs:string"/>
	<xs:element name="usage" type="xs:string"/>
</xs:schema>
