-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131" version="1.3.1">
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 <xsd:include schemaLocation="typ_dataTypes.xsd"/>
<!--
 -->
-<xsd:complexType name="cs_commonData">
-<xsd:annotation>
 <xsd:documentation> WITSML - Common Data Component Schema </xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="sourceName" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>An identifier to indicate the data originator. This identifies the server that originally created the object and thus most of the uids in the object (but not necessarily the uids of the parents). This is typically a url. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimCreation" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>When the data was created at the persistent data store. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimLastChange" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Last change of any element of the data at the persistent data store. The change time is not updated for a growing object while it is growing. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="itemState" type="witsml:ItemState" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The item state for the data object. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="comments" type="witsml:commentString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Comments and remarks. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:complexType>
 </xsd:schema>