eml.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="https://eml.ecoinformatics.org/eml-2.2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:eml="https://eml.ecoinformatics.org/eml-2.2.0">
  <xs:import schemaLocation="eml-gbif-profile.xsd"/>
  <xs:import namespace="http://www.w3.org/XML/1998/namespace"  schemaLocation="http://www.w3.org/2001/xml.xsd"/>
  <xs:element name="eml">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="dataset"/>
        <xs:element ref="additionalMetadata" maxOccurs="1" minOccurs="0"/>
      </xs:sequence>
      <xs:attribute name="packageId" use="required" type="xs:string">
        <xs:annotation>
          <xs:documentation>Unique global ID for this exact version of the EML document</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="scope" use="required" type="xs:string" fixed="system"/>
      <xs:attribute name="system" use="required">
        <xs:simpleType>
          <xs:list itemType="xs:string"/>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute ref="xml:lang" use="optional">
        <xs:annotation>
          <xs:documentation>The language in which the metadata (as opposed to the resource being described by the metadata) is written</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
</xs:schema>