| element | RequestForExternalInformation/theRFI |
<xs:sequence>
<xs:element name="typeReq" type="TypeReq" minOccurs="0"/>
<!-- the name of the database or dictionary
to be used (e.g. NAERG2000) -->
<xs:element name="typeItem" type="TypeItem" minOccurs="0"/>
<!-- the code or key index to be looked up
(e.g. 1203 for common Gas) -->
<xs:element name="dataSource" type="DataSource" minOccurs="0"/>
<!-- the source of the data to be used
(e.g. national, local, Bob's db. etc..) -->
<xs:element name="requesterID" type="RequesterID" minOccurs="0"/>
<!-- an identity of the requestor when needed -->
<xs:element name="secString" type="SecString" minOccurs="0"/>
<!-- any security strings can be placed here -->
<xs:element name="returnTo" type="ReturnTo" minOccurs="0"/>
<!-- a indication of where the returned data
should be sent to. This might be a deployed
asset, or the dispatch requester if blank
presume return to the CAD seat of the
requesting operator -->
<xs:element name="preferredFormat" type="ReplyFormat" minOccurs="0"/>
<!-- the desired formatting to be used.
If data is not available in such
a format, another may be selected.
It is the responsibility of implementers
to deal with size and complexity restrictions
in the reply -->
<xs:element name="typeMIME" type="TypeMIME" minOccurs="0"/>
<!-- if an internet MIME style is selected,
the type shall follow here
it shall follow the std 2-part expression
(e.g. text/plain)
the charset is presumed to be "US-ASCII"
unless that is also denoted -->
<xs:element name="refDestination" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:minLength value="0"/>
<xs:maxLength value="30"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<!-- a unique tag by which the request is
known by the issuing center -->
<xs:element name="reqTime" type="IssueStamp"/>
<!-- time/version stamp -->
</xs:sequence>
</xs:complexType>
