demobibdata upload mappings

[Allan Oware]

Hi all,
Once the sample demobibdata.xml found in /var/tmp/ is uploaded via the
command
bibupload -i demobibdata.xml, how are the records mapped to different
document types and subsequently collections ?

<record>
        <datafield tag="100" ind1=" " ind2=" ">
            <subfield code="a">Doe, John</subfield>
        </datafield>
        <datafield tag="245" ind1=" " ind2=" ">
            <subfield code="a">On The Foo And Bar</subfield>
        </datafield>
    </record>

>From the marc xml sample above, is there a tag or attributes that can
indicate whether the record is a - journal or thesis ?

Thanks.