diff --git a/Gdcmetadataprofilev3.xsd b/Gdcmetadataprofilev3.xsd
index dc8e9f2..481ff22 100644
--- a/Gdcmetadataprofilev3.xsd
+++ b/Gdcmetadataprofilev3.xsd
@@ -5,7 +5,7 @@
 	<xs:element name="metadataformat">
 		<xs:complexType>
 			<xs:sequence>
-				<xs:element name="metadatafield" minOccurs="1" maxOccurs="unbounded">
+				<xs:element name="metadatafield" minOccurs="0" maxOccurs="unbounded">
 					<xs:complexType>
 						<xs:sequence>
 							<xs:element type="xs:string" name="fieldName" />
@@ -25,6 +25,8 @@
 									</xs:restriction>
 								</xs:simpleType>
 							</xs:element>
+							<xs:element type="xs:string" name="maxOccurs"
+								minOccurs="0" maxOccurs="1" />
 							<xs:element type="xs:string" name="defaultValue"
 								minOccurs="0" maxOccurs="1" />
 							<xs:element type="xs:string" name="note" minOccurs="0"
@@ -56,7 +58,7 @@
 					</xs:complexType>
 				</xs:element>
 			</xs:sequence>
-			<xs:attribute type="NotEmpty" use="required" name="metadatatype" />
+			<xs:attribute type="NotEmpty" use="required" name="type" />
 		</xs:complexType>
 	</xs:element>
 	<xs:simpleType name="TaggingGroupingValue">
@@ -88,4 +90,4 @@
 			<xs:minLength value="1" />
 		</xs:restriction>
 	</xs:simpleType>
-</xs:schema>
+</xs:schema>
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