Index: DamEngine/trunk/xsd/OutputTypes/OperationalStaticData.xsd
===================================================================
diff -u -r6105 -r6118
--- DamEngine/trunk/xsd/OutputTypes/OperationalStaticData.xsd	(.../OperationalStaticData.xsd)	(revision 6105)
+++ DamEngine/trunk/xsd/OutputTypes/OperationalStaticData.xsd	(.../OperationalStaticData.xsd)	(revision 6118)
@@ -2,15 +2,15 @@
 <!-- Created with Liquid XML Studio 1.0.8.0 (http://www.liquid-technologies.com) -->
 <xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:complexType name="OperationalStaticData">
-    <xs:attribute name="FailureMechanismSystemType">
+    <xs:attribute name="FailureMechanismSystemType" use="required">
       <xs:simpleType>
         <xs:restriction base="xs:string">
           <xs:enumeration value="StabilityInside" />
           <xs:enumeration value="StabilityOutside" />
         </xs:restriction>
       </xs:simpleType>
     </xs:attribute>
-    <xs:attribute name="StabilityModel">
+    <xs:attribute name="StabilityModel" use="required">
       <xs:simpleType>
         <xs:restriction base="xs:string">
           <xs:enumeration value="Bishop" />
@@ -19,7 +19,7 @@
         </xs:restriction>
       </xs:simpleType>
     </xs:attribute>
-    <xs:attribute name="SearchAlgorithm">
+    <xs:attribute name="SearchAlgorithm" use="required">
       <xs:simpleType>
         <xs:restriction base="xs:string">
           <xs:enumeration value="Grid" />
Index: DamEngine/trunk/xsd/DamOutput.xsd
===================================================================
diff -u -r6096 -r6118
--- DamEngine/trunk/xsd/DamOutput.xsd	(.../DamOutput.xsd)	(revision 6096)
+++ DamEngine/trunk/xsd/DamOutput.xsd	(.../DamOutput.xsd)	(revision 6118)
@@ -13,13 +13,7 @@
         <xs:complexType>
           <xs:sequence>
             <xs:element name="CalculationResults" type="CalculationResults" />
-            <xs:element name="OperationalStaticData">
-              <xs:complexType>
-                <xs:sequence>
-                  <xs:element minOccurs="0" maxOccurs="1" name="OperationalStaticData" type="OperationalStaticData" />
-                </xs:sequence>
-              </xs:complexType>
-            </xs:element>
+            <xs:element minOccurs="0" maxOccurs="1" name="OperationalStaticData" type="OperationalStaticData" />
             <xs:element minOccurs="0" maxOccurs="1" name="OperationalLocationsStaticData" nillable="true">
               <xs:complexType>
                 <xs:sequence minOccurs="1" maxOccurs="unbounded">