1 files changed, 17 insertions, 0 deletions
diff --git a/xsd/ee.xsd b/xsd/ee.xsd
index 87f072d..8aad7d2 100644
--- a/xsd/ee.xsd
+++ b/xsd/ee.xsd
@@ -35,11 +35,13 @@ TODO: rename 'id' to 'url'.
 
     <xs:element name="part-db" type="PartDb"/>
     <xs:element name="part" type="Part"/>
+    <xs:element name="categories" type="CategoryList"/>
 
     <xs:complexType name="PartDb">
         <xs:sequence>
             <xs:element name="parts" type="PartList" minOccurs="0"/>
             <xs:element name="assembly" type="Assembly" minOccurs="0"/>
+            <xs:element name="categories" type="CategoryList" minOccurs="0"/>
         </xs:sequence>
     </xs:complexType>
 
@@ -47,6 +49,7 @@ TODO: rename 'id' to 'url'.
         <xs:sequence>
             <xs:element name="supplier" type="xs:anyURI" minOccurs="0"/>
             <xs:element name="description" type="xs:string"/>
+            <xs:element name="category" type="xs:anyURI"/>
             <xs:element name="links" type="LinkList"/>
             <xs:element name="references" type="ReferenceList"/>
             <xs:element name="facts" type="FactList"/>
@@ -61,6 +64,20 @@ TODO: rename 'id' to 'url'.
         </xs:sequence>
     </xs:complexType>
 
+    <xs:complexType name="Category">
+        <xs:sequence>
+            <xs:element name="name" type="xs:string" minOccurs="0"/>
+            <xs:element name="links" type="LinkList"/>
+        </xs:sequence>
+        <xs:attribute ref="uri"/>
+    </xs:complexType>
+
+    <xs:complexType name="CategoryList">
+        <xs:sequence>
+            <xs:element name="category" type="Category" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+
     <xs:complexType name="PartReference">
         <xs:sequence>
             <xs:element name="part-uri" type="xs:anyURI"/>