<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2005 rel. 3 U (http://www.altova.com) by Sheila Denn (UNC-Chapel Hill School of Information and Library Science) -->
<!-- edited with XMLSPY v2004 rel. 3 U (http://www.xmlspy.com) by Sheila Denn (private) -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://ils.unc.edu/govstat/namespace" targetNamespace="http://ils.unc.edu/govstat/namespace" elementFormDefault="qualified" attributeFormDefault="unqualified">
	<xs:element name="entDscr">
		<xs:annotation>
			<xs:documentation>Schema for Entities</xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element name="contentInfo" minOccurs="0">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="subject" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string"/>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="keyword" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="vocab" type="xs:string" use="required"/>
											<xs:attribute name="vocabURI" type="xs:string" use="optional"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="abstract" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="source" type="xs:string" use="optional"/>
											<xs:attribute name="date" type="xs:string" use="optional"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="sumDscr" minOccurs="0">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="timePrd" minOccurs="0" maxOccurs="unbounded">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:date">
														<xs:attribute name="event" use="required">
															<xs:simpleType>
																<xs:restriction base="xs:string">
																	<xs:enumeration value="start"/>
																	<xs:enumeration value="end"/>
																	<xs:enumeration value="single"/>
																</xs:restriction>
															</xs:simpleType>
														</xs:attribute>
														<xs:attribute name="cycle" type="xs:string" use="optional"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element name="collDate" minOccurs="0" maxOccurs="unbounded">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:date">
														<xs:attribute name="event" use="required">
															<xs:simpleType>
																<xs:restriction base="xs:string">
																	<xs:enumeration value="start"/>
																	<xs:enumeration value="end"/>
																	<xs:enumeration value="single"/>
																</xs:restriction>
															</xs:simpleType>
														</xs:attribute>
														<xs:attribute name="cycle" type="xs:string" use="optional"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element name="geogCover" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
										<xs:element name="geogUnit" minOccurs="0">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:string">
														<xs:attribute name="source" type="xs:string" use="optional"/>
														<xs:attribute name="codeset" type="xs:string" use="optional"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element name="anlyUnit" minOccurs="0" maxOccurs="unbounded">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:string">
														<xs:attribute name="source" type="xs:string" use="optional"/>
														<xs:attribute name="unit" type="xs:string" use="optional"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element ref="universe" minOccurs="0" maxOccurs="unbounded"/>
										<xs:element name="dataKind" minOccurs="0" maxOccurs="unbounded">
											<xs:simpleType>
												<xs:restriction base="xs:string">
													<xs:enumeration value="survey data"/>
													<xs:enumeration value="census/enumeration data"/>
													<xs:enumeration value="aggregate data"/>
													<xs:enumeration value="clinical data"/>
													<xs:enumeration value="event/transaction data"/>
													<xs:enumeration value="program source code"/>
													<xs:enumeration value="machine-readable text"/>
													<xs:enumeration value="administrative records data"/>
													<xs:enumeration value="experimental data"/>
													<xs:enumeration value="psychological test data"/>
													<xs:enumeration value="textual data"/>
													<xs:enumeration value="coded textual data"/>
													<xs:enumeration value="time budget diaries"/>
													<xs:enumeration value="observation data/ratings"/>
													<xs:enumeration value=""/>
												</xs:restriction>
											</xs:simpleType>
										</xs:element>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
							<xs:element name="stdyGrpID" type="xs:IDREFS" minOccurs="0" maxOccurs="unbounded"/>
							<xs:element name="relatedEntity" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:attribute name="relEntID" type="xs:IDREF" use="required"/>
									<xs:attribute name="relType" type="xs:string" use="required"/>
								</xs:complexType>
							</xs:element>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
				<xs:element name="citation" minOccurs="0">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="title" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="source" type="xs:string" use="optional"/>
											<xs:attribute name="date" type="xs:date" use="optional"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="agencyIdNo" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:attribute name="agency" type="xs:string" use="required"/>
								</xs:complexType>
							</xs:element>
							<xs:element name="authEnt" minOccurs="0" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="affiliation" type="xs:string" use="optional"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="prodStmt" minOccurs="0">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="producer" minOccurs="0" maxOccurs="unbounded">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:string">
														<xs:attribute name="abbreviation" type="xs:string" use="optional"/>
														<xs:attribute name="affiliation" type="xs:string" use="optional"/>
														<xs:attribute name="role" type="xs:string" use="optional"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element name="prodDate" minOccurs="0" maxOccurs="unbounded"/>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
						</xs:sequence>
						<xs:attribute name="sourceURL" type="xs:string" use="optional"/>
					</xs:complexType>
				</xs:element>
				<xs:element name="markupInfo">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="creator" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="affiliation" type="xs:string"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
							<xs:element name="creationDate" type="xs:date"/>
							<xs:element name="notes" type="xs:string"/>
							<xs:element name="status" maxOccurs="unbounded">
								<xs:complexType>
									<xs:simpleContent>
										<xs:extension base="xs:string">
											<xs:attribute name="date" type="xs:date" use="required"/>
										</xs:extension>
									</xs:simpleContent>
								</xs:complexType>
							</xs:element>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
				<xs:element name="tableInfo" minOccurs="0">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="tableTitle" type="xs:string"/>
							<xs:element name="tableFootnote" minOccurs="0" maxOccurs="unbounded"/>
							<xs:element name="rowInfo" maxOccurs="unbounded">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="rowTitle" type="xs:string"/>
										<xs:element name="rowFootnote" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
										<xs:element name="rowID" type="xs:ID"/>
										<xs:element name="charIDRef" type="xs:IDREF"/>
										<xs:element name="CDIDRef" type="xs:IDREF"/>
										<xs:element name="VMIDRef" type="xs:IDREF"/>
										<xs:element name="measUnit" type="xs:string"/>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
							<xs:element name="colInfo" maxOccurs="unbounded">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="colTitle" type="xs:string"/>
										<xs:element name="colFootnote" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
										<xs:element name="colID" type="xs:ID"/>
										<xs:element name="charIDRef" type="xs:IDREF"/>
										<xs:element name="CDIDRef" type="xs:IDREF"/>
										<xs:element name="VMIDRef" type="xs:IDREF"/>
										<xs:element name="measUnit" type="xs:string"/>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
							<xs:element name="cellInfo" maxOccurs="unbounded">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="cellValue">
											<xs:complexType>
												<xs:simpleContent>
													<xs:extension base="xs:string">
														<xs:attribute name="rowID" type="xs:IDREF" use="required"/>
														<xs:attribute name="colID" type="xs:IDREF" use="required"/>
													</xs:extension>
												</xs:simpleContent>
											</xs:complexType>
										</xs:element>
										<xs:element name="cellFootnote" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
										<xs:element name="measUnit" type="xs:string" minOccurs="0"/>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
							<xs:element name="popIDRef" type="xs:IDREF"/>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
				<xs:element name="charInfo" minOccurs="0">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="characteristicTitle" type="xs:string"/>
							<xs:element name="charID" type="xs:ID"/>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
				<xs:element name="popInfo" minOccurs="0">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="populationTitle" type="xs:string"/>
							<xs:element name="popID" type="xs:ID"/>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
			</xs:sequence>
			<xs:attribute name="entType" use="required">
				<xs:simpleType>
					<xs:restriction base="xs:string">
						<xs:enumeration value="nCube"/>
						<xs:enumeration value="news release"/>
						<xs:enumeration value="report"/>
						<xs:enumeration value="data set"/>
						<xs:enumeration value="codebook"/>
						<xs:enumeration value="study"/>
						<xs:enumeration value="chart"/>
						<xs:enumeration value="table"/>
					</xs:restriction>
				</xs:simpleType>
			</xs:attribute>
		</xs:complexType>
	</xs:element>
	<xs:complexType name="citationType">
		<xs:sequence>
			<xs:element name="title" minOccurs="0" maxOccurs="unbounded">
				<xs:complexType>
					<xs:simpleContent>
						<xs:extension base="xs:string">
							<xs:attribute name="source" use="required">
								<xs:simpleType>
									<xs:restriction base="xs:string">
										<xs:enumeration value="title tags"/>
										<xs:enumeration value="top of document"/>
										<xs:enumeration value="created on markup"/>
									</xs:restriction>
								</xs:simpleType>
							</xs:attribute>
							<xs:attribute name="date" type="xs:date" use="required"/>
						</xs:extension>
					</xs:simpleContent>
				</xs:complexType>
			</xs:element>
			<xs:element name="authEnt" minOccurs="0" maxOccurs="unbounded">
				<xs:complexType>
					<xs:simpleContent>
						<xs:extension base="xs:string">
							<xs:attribute name="affiliation" type="xs:string" use="optional"/>
						</xs:extension>
					</xs:simpleContent>
				</xs:complexType>
			</xs:element>
			<xs:element name="prodStmt" minOccurs="0">
				<xs:complexType>
					<xs:sequence>
						<xs:element name="producer" minOccurs="0" maxOccurs="unbounded">
							<xs:complexType>
								<xs:simpleContent>
									<xs:extension base="xs:string">
										<xs:attribute name="abbr" type="xs:string" use="required"/>
										<xs:attribute name="affiliation" use="optional">
											<xs:simpleType>
												<xs:restriction base="xs:string"/>
											</xs:simpleType>
										</xs:attribute>
										<xs:attribute name="role" use="required">
											<xs:simpleType>
												<xs:restriction base="xs:string">
													<xs:enumeration value="original producer"/>
													<xs:enumeration value="revision producer"/>
												</xs:restriction>
											</xs:simpleType>
										</xs:attribute>
									</xs:extension>
								</xs:simpleContent>
							</xs:complexType>
						</xs:element>
						<xs:element name="prodDate" type="xs:date" minOccurs="0" maxOccurs="unbounded"/>
					</xs:sequence>
				</xs:complexType>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="titleType">
		<xs:simpleContent>
			<xs:extension base="xs:string">
				<xs:attribute name="date" type="xs:date" use="required"/>
			</xs:extension>
		</xs:simpleContent>
	</xs:complexType>
	<xs:element name="universe">
		<xs:complexType>
			<xs:simpleContent>
				<xs:extension base="xs:string">
					<xs:attribute name="source" type="xs:string" use="optional"/>
					<xs:attribute name="clusion" use="optional">
						<xs:simpleType>
							<xs:restriction base="xs:string">
								<xs:enumeration value="I"/>
								<xs:enumeration value="E"/>
							</xs:restriction>
						</xs:simpleType>
					</xs:attribute>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:element>
</xs:schema>
