<xs:element name="DataSets">
  <xs:annotation>
    <xs:documentation>ABCD v.1 root element: container for one or more DataSets. </xs:documentation>
    <xs:appinfo>
      <sea:FullName>Datasets</sea:FullName>
      <sea:Audience>BioCASE</sea:Audience>
      <sea:Audience>CODATA TDWG</sea:Audience>
      <sea:Reviewer>Berendsohn Mar 3 2003</sea:Reviewer>
      <sea:ExistingStandards>				</sea:ExistingStandards>
      <sea:Content>Root element of the schema, forming the container for one or more data sets.</sea:Content>
      <sea:Comments>Allows to handle several different datasets with a single response operation</sea:Comments>
      <sea:Rules>				</sea:Rules>
      <sea:EditorialNotes>				</sea:EditorialNotes>
    </xs:appinfo>
  </xs:annotation>
  <xs:complexType>
    <xs:sequence>
      <xs:element name="DataSet" maxOccurs="unbounded">
        <xs:annotation>
          <xs:documentation>A dataset containing unit data and their shared metadata elements.</xs:documentation>
          <xs:appinfo>
            <sea:FullName>Data set</sea:FullName>
            <sea:Audience>BioCASE</sea:Audience>
            <sea:Audience>CODATA TDWG</sea:Audience>
            <sea:Reviewer>							</sea:Reviewer>
            <sea:ExistingStandards>NBN: Survey. </sea:ExistingStandards>
            <sea:Content>A container element for one to many unit data records and their shared metadata elements. The metadata relates to the source, provision, the ownership and rights etc. pertaining to the entire dataset. Attribute: xmlns, indicating the schema version used.</sea:Content>
            <sea:Comments>							</sea:Comments>
            <sea:Rules>							</sea:Rules>
            <sea:EditorialNotes>							</sea:EditorialNotes>
          </xs:appinfo>
        </xs:annotation>
        <xs:complexType>
          <xs:sequence>
            <xs:element name="OriginalSource">
              <xs:annotation>
                <xs:documentation>Properties of the original data source, also providing a unique identifier for the dataset</xs:documentation>
                <xs:appinfo>
                  <sea:FullName>Original source</sea:FullName>
                  <sea:Audience>BioCASE</sea:Audience>
                  <sea:Audience>CODATA TDWG</sea:Audience>
                  <sea:Reviewer>										</sea:Reviewer>
                  <sea:ExistingStandards>										</sea:ExistingStandards>
                  <sea:Content>Properties of the orignal database or other datasource from which the ABCD-document is derived</sea:Content>
                  <sea:Examples>										</sea:Examples>
                  <sea:Comments>										</sea:Comments>
                  <sea:Rules>										</sea:Rules>
                  <sea:EditorialNotes>Notes: Many elements of this structure are directly taken from the DTD for the Integrated Taxonomic Information System, Canadian node (ITIS*ca) at: http://sis.agr.gc.ca/itis/ which was provided by Derek Munro. </sea:EditorialNotes>
                </xs:appinfo>
              </xs:annotation>
              <xs:complexType>
                <xs:sequence>
                  <xs:element name="SourceInstitutionCode" type="InstitutionCodeType">
                    <xs:annotation>
                      <xs:documentation>Unique identifier of the institution holding the original datasource (first part of dataset identifier)</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Source institution code</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>													</sea:ExistingStandards>
                        <sea:Content>An institutional abbreviation, perhaps with indication of the standard it pertains to (e.g. IH-P for Index Herbariorum and the herbarium at the MNHN in Paris. A controlled vocabulary for collection institutions, but inclusion of private collections must be made possible.</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>The units within the datasource are not necessarily all owned or administred by this institution</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceName" type="xs:string">
                    <xs:annotation>
                      <xs:documentation>Name or code of the data source (unique within the institution, second part of the dataset identifier)</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Source name</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>ITIS*ca draft metadata</sea:ExistingStandards>
                        <sea:Content>May be the name of a collection if all records are for a stem from a single collection. Together with the element DBInstitution, DBName provides a unique identifier for the dataset's original source</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>Mandatory second partial identifier for a dataset.</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceLastUpdatedDate" type="xs:date">
                    <xs:annotation>
                      <xs:documentation>Date when the content or structure of the database was last changed</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Date of last update of the dataset</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>ITIS*ca draft metadata. </sea:ExistingStandards>
                        <sea:Content>Date when the database was last changed, including the addition, deletion, or editing of records as well as structural changes that may influence the format or structure of ABCD-conformant output</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>Mandatory to raise efficiency of "harvesters" and indexing engines working on datasets derived from the data source.</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceVersion" type="xs:string" minOccurs="0">
                    <xs:annotation>
                      <xs:documentation>Version of the datasource</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Source version</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>													</sea:ExistingStandards>
                        <sea:Content>Version number or edition of the datasource</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>													</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceWebAddress" type="xs:anyURI" minOccurs="0">
                    <xs:annotation>
                      <xs:documentation>URI of the original datasource</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Source URI</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>ITIS*ca draft metadata. </sea:ExistingStandards>
                        <sea:Content>A URL providing an access interface to the original datasource</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>													</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceExpiryDate" type="xs:date" minOccurs="0">
                    <xs:annotation>
                      <xs:documentation>Expiry date of records from the datasource</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Expiry date of source dataset</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>ITIS*ca draft metadata. </sea:ExistingStandards>
                        <sea:Content>Date after which the records in the database should not anymore be used</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>Allows databases to force update of indices etc. </sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                  <xs:element name="SourceNumberOfRecords" type="xs:string" minOccurs="0">
                    <xs:annotation>
                      <xs:documentation>Number of units in the source database</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Number of unit records in the source dataset</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>													</sea:ExistingStandards>
                        <sea:Content>Total number of unit-level records in the datasource</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>													</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                  </xs:element>
                </xs:sequence>
              </xs:complexType>
            </xs:element>
            <xs:element name="DatasetDerivations">
              <xs:annotation>
                <xs:documentation>Additional properties of the dataset as created when it is derived from the origninal source or from an already derived dataset.</xs:documentation>
              </xs:annotation>
              <xs:complexType>
                <xs:sequence>
                  <xs:element name="DatasetDerivation" maxOccurs="unbounded">
                    <xs:annotation>
                      <xs:documentation>Additional properties of datasets</xs:documentation>
                      <xs:appinfo>
                        <sea:FullName>Dataset derivation</sea:FullName>
                        <sea:Audience>BioCASE</sea:Audience>
                        <sea:Audience>CODATA TDWG</sea:Audience>
                        <sea:Reviewer>													</sea:Reviewer>
                        <sea:ExistingStandards>													</sea:ExistingStandards>
                        <sea:Content>Additional properties pertaining to the dataset(s) derived directly or indirectly from of the orignal source. Repeatable to form a derivation history where appropriate.</sea:Content>
                        <sea:Examples>													</sea:Examples>
                        <sea:Comments>													</sea:Comments>
                        <sea:Rules>													</sea:Rules>
                        <sea:EditorialNotes>													</sea:EditorialNotes>
                      </xs:appinfo>
                    </xs:annotation>
                    <xs:complexType>
                      <xs:sequence>
                        <xs:element name="DateSupplied" type="xs:date">
                          <xs:annotation>
                            <xs:documentation>															</xs:documentation>
                            <xs:appinfo>
                              <sea:FullName>Date supplied</sea:FullName>
                              <sea:Audience>BioCASE</sea:Audience>
                              <sea:Audience>CODATA TDWG</sea:Audience>
                              <sea:Reviewer>																</sea:Reviewer>
                              <sea:ExistingStandards>ITIS*ca draft metadata. </sea:ExistingStandards>
                              <sea:Content>																</sea:Content>
                              <sea:Examples>																</sea:Examples>
                              <sea:Comments>																</sea:Comments>
                              <sea:Rules>																</sea:Rules>
                              <sea:EditorialNotes>																</sea:EditorialNotes>
                            </xs:appinfo>
                          </xs:annotation>
                        </xs:element>
                        <xs:element name="Supplier" type="ContactType">
                          <xs:annotation>
                            <xs:documentation>Supplier of the dataset.</xs:documentation>
                            <xs:appinfo>
                              <sea:FullName>Dataset supplier</sea:FullName>
                              <sea:Audience>BioCASE</sea:Audience>
                              <sea:Audience>CODATA TDWG</sea:Audience>
                              <sea:Reviewer>																</sea:Reviewer>
                              <sea:ExistingStandards>																</sea:ExistingStandards>
                              <sea:Content>Individual or organisation who have (generated and) supplied the dataset</sea:Content>
                              <sea:Examples>																</sea:Examples>
                              <sea:Comments>																</sea:Comments>
                              <sea:Rules>																</sea:Rules>
                              <sea:EditorialNotes>																</sea:EditorialNotes>
                            </xs:appinfo>
                          </xs:annotation>
                        </xs:element>
                        <xs:element name="Rights" type="RightsType" minOccurs="0">
                          <xs:annotation>
                            <xs:documentation>Legal rights and ownership if different from original source</xs:documentation>
                            <xs:appinfo>
                              <sea:FullName>Dataset rights</sea:FullName>
                              <sea:Audience>BioCASE</sea:Audience>
                              <sea:Audience>CODATA TDWG</sea:Audience>
                              <sea:Reviewer>																</sea:Reviewer>
                              <sea:ExistingStandards>																</sea:ExistingStandards>
                              <sea:Content>A container element stating the ownership and legal rights pertaining to the entire dataset. May be overuled by statements under UnitData</sea:Content>
                              <sea:Examples>																</sea:Examples>
                              <sea:Comments>Should always be cited together with DBRights</sea:Comments>
                              <sea:Rules>																</sea:Rules>
                              <sea:EditorialNotes>																</sea:EditorialNotes>
                            </xs:appinfo>
                          </xs:annotation>
                        </xs:element>
                        <xs:element name="Statements" type="StatementsType" minOccurs="0">
                          <xs:annotation>
                            <xs:documentation>Acknowledgements, disclaimer, credit, if different from orgininal source</xs:documentation>
                            <xs:appinfo>
                              <sea:FullName>Dataset statements</sea:FullName>
                              <sea:Audience>BioCASE</sea:Audience>
                              <sea:Audience>CODATA TDWG</sea:Audience>
                              <sea:Reviewer>																</sea:Reviewer>
                              <sea:ExistingStandards>																</sea:ExistingStandards>
                              <sea:Content>A container element for statements of creditation or disclaimers. May be overuled by statements under UnitData</sea:Content>
                              <sea:Examples>																</sea:Examples>
                              <sea:Comments> Should always be cited together with DBStatements</sea:Comments>
                              <sea:Rules>																</sea:Rules>
                              <sea:EditorialNotes>																</sea:EditorialNotes>
                            </xs:appinfo>
                          </xs:annotation>
                        </xs:element>
                        <xs:element name="Description" minOccurs="0">
                          <xs:annotation>
                            <xs:documentation>Text describing the DataSet</xs:documentation>
                            <xs:appinfo>
                              <sea:FullName>Dataset description</sea:FullName>
                              <sea:Audience>BioCASE</sea:Audience>
                              <sea:Audience>CODATA TDWG</sea:Audience>
                              <sea:Reviewer>																</sea:Reviewer>
                              <sea:ExistingStandards>																</sea:ExistingStandards>
                              <sea:Content>A free text statement describing the dataset, including e.g. statements about selective criteria or sort order used in the generation of the dataset </sea:Content>
                              <sea:Examples>																</sea:Examples>
                              <sea:Comments>																</sea:Comments>
                              <sea:Rules>																</sea:Rules>
                              <sea:EditorialNotes>																</sea:EditorialNotes>
                            </xs:appinfo>
                          </xs:annotation>
                          <xs:complexType>
                            <xs:simpleContent>
                              <xs:extension base="xs:string">
                                <xs:attribute name="Language" type="xs:language"/>
                              </xs:extension>
                            </xs:simpleContent>
                          </xs:complexType>
                        </xs:element>
                      </xs:sequence>
                      <xs:attribute name="OriginalSource" type="xs:boolean" use="optional" default="false"/>
                    </xs:complexType>
                  </xs:element>
                </xs:sequence>
              </xs:complexType>
            </xs:element>
            <xs:element name="Units">
              <xs:annotation>
                <xs:documentation>A container for one or more unit data records</xs:documentation>
              </xs:annotation>
              <xs:complexType>
                <xs:sequence>
                  <xs:element name="Unit" type="UnitDataType" maxOccurs="unbounded">
                    <xs:annotation>
                      <xs:documentation>A container for all data referring to a unit (specimen or observation record)</xs:documentation>
                    </xs:annotation>
                  </xs:element>
                </xs:sequence>
              </xs:complexType>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:element>

<xs:element name="DataSet" maxOccurs="unbounded">
  <xs:annotation>
    <xs:documentation>A dataset containing unit data and their shared metadata elements.</xs:documentation>
    <xs:appinfo>
      <sea:FullName>Data set</sea:FullName>
      <sea:Audience>BioCASE</sea:Audience>
      <sea:Audience>CODATA TDWG</sea:Audience>
      <sea:Reviewer>							</sea:Reviewer>
      <sea:ExistingStandards>NBN: Survey. </sea:ExistingStandards>
      <sea:Content>A container element for one to many unit data records and their shared metadata elements. The metadata relates to the source, provision, the ownership and rights etc. pertaining to the entire dataset. Attribute: xmlns, indicating the schema version used.</sea:Content>
      <sea:Comments>							</sea:Comments>
      <sea:Rules>							</sea:Rules>
      <sea:EditorialNotes>							</sea:EditorialNotes>
    </xs:appinfo>
  </xs:annotation>
  <xs:complexType>
    <xs:sequence>
      <xs:element name="OriginalSource">
        <xs:annotation>
          <xs:documentation>Properties of the original data source, also providing a unique identifier for the dataset</xs:documentation>
          <xs:appinfo>
            <sea:FullName>Original source</sea:FullName>
            <sea:Audience>BioCASE</sea:Audience>
            <sea:Audience>CODATA TDWG</sea:Audience>
            <sea:Reviewer>										</sea:Reviewer>
            <sea:ExistingStandards>										</sea:ExistingStandards>
            <sea:Content>Properties of the orignal database or other datasource from which the ABCD-document is derived</sea:Content>
            <sea:Examples>										</sea:Examples>
            <sea:Comments>										</sea:Comments>
            <sea:Rules>										</sea:Rules>
            <sea:EditorialNotes>Notes: Many elements of this structure are directly taken from the DTD for the Integrated Taxonomic Information System, Canadian node (ITIS*ca) at: http://sis.agr.gc.ca/itis/ which was provided by Derek Munro. </sea:EditorialNotes>
          </xs:appinfo>
        </xs:annotation>
        <xs:complexType>
          <xs:sequence>
            <xs:element name="SourceInstitutionCode" type="InstitutionCodeType">
              <xs:annotation>
                <xs:documentation>Unique identifier of the institution holding the original datasource (first part of dataset identifier)</xs:documentation>
                <xs:appinfo>
                  <sea:FullName>Source institution code</sea:FullName>
                  <sea:Audience>BioCASE</sea:Audience>
                  <sea:Audience>CODATA TDWG</sea:Audience>
                  <sea:Reviewer>													</sea:Reviewer>
                  <sea:ExistingStandards>													</sea:ExistingStandards>
                  <sea:Content>An institutional abbreviation, perhaps with indication of the standard it pertains to (e.g. IH-P for Index Herbariorum and the herbarium at the MNHN in Paris. A controlled vocabulary for collection institutions, but inclusion of private collections must be made possible.</sea:Content>
                  <sea:Examples>													</sea:Examples>
                  <sea:Comments>The units within the datasource are not necessarily all owned or administred by this institution