<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:element name="projeto">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="autores" type="AutoresType" minOccurs="0"/>
        <xs:element name="ementa" type="xs:string"/>
        <xs:element name="materia" type="xs:string"/>
        <xs:element name="justificativa" type="xs:string"/>
        <xs:element name="datas" type="DatasProjetoType" minOccurs="0"/>
        <xs:element name="regimeTramitacao" type="xs:string" minOccurs="0"/>
        <xs:element name="impactoOrcamentario" type="xs:string" minOccurs="0"/>
        <xs:element name="historico" type="HistoricoType" minOccurs="0"/>
        <xs:element name="distribuicao" type="DistribuicaoType" minOccurs="0"/>
        <xs:element name="pareceres" type="PareceresType" minOccurs="0"/>
        <xs:element name="resultadoFinal" type="xs:string" minOccurs="0"/>
        <xs:element name="historicoResultado" type="HistoricoResultadoType" minOccurs="0"/>
      </xs:sequence>
      <xs:attribute name="ano" type="xs:string" use="required"/>
      <xs:attribute name="legislatura" type="xs:string" use="required"/>
      <xs:attribute name="numero" type="xs:string" use="required"/>
      <xs:attribute name="subtipo" type="xs:string" use="optional"/>
      <xs:attribute name="tipo" type="xs:string" use="required"/>
    </xs:complexType>
  </xs:element>

  <xs:complexType name="AutoresType">
    <xs:sequence>
      <xs:element name="autor" minOccurs="0" maxOccurs="unbounded">
        <xs:complexType>
          <xs:attribute name="nome" type="xs:string" use="required"/>
          <xs:attribute name="tipo" type="xs:string" use="required"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="DatasProjetoType">
    <xs:sequence>
      <xs:element name="data" minOccurs="0" maxOccurs="unbounded">
        <xs:complexType>
          <xs:simpleContent>
            <xs:extension base="xs:string">
              <xs:attribute name="tipo" type="xs:string" use="required"/>
            </xs:extension>
          </xs:simpleContent>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="HistoricoType">
    <xs:sequence>
      <xs:element name="evento" type="EventoType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="EventoType">
    <xs:sequence>
      <xs:element name="acao" type="xs:string"/>
    </xs:sequence>
    <xs:attribute name="data" type="xs:string" use="required"/>
  </xs:complexType>

  <xs:complexType name="DistribuicaoType">
    <xs:sequence>
      <xs:element name="distribuido" minOccurs="0" maxOccurs="unbounded">
        <xs:complexType>
          <xs:attribute name="comissao" type="xs:string" use="required"/>
          <xs:attribute name="data" type="xs:string" use="required"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="PareceresType">
    <xs:sequence>
      <xs:element name="parecer" type="ParecerType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="ParecerType">
    <xs:sequence>
      <xs:element name="data" type="xs:string"/>
      <xs:element name="tipo" type="xs:string"/>
      <xs:element name="relatorio" type="xs:string"/>
      <xs:element name="conclusao" type="xs:string"/>
    </xs:sequence>
    <xs:attribute name="ano" type="xs:string" use="required"/>
    <xs:attribute name="comissao" type="xs:string" use="required"/>
    <xs:attribute name="numero" type="xs:string" use="required"/>
  </xs:complexType>

  <xs:complexType name="HistoricoResultadoType">
    <xs:sequence>
      <xs:element name="discussao" minOccurs="0" maxOccurs="unbounded">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="resultado" type="xs:string"/>
          </xs:sequence>
          <xs:attribute name="data" type="xs:string" use="required"/>
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>

</xs:schema>