<?xml version="1.0"?>
<!--  Begin GML.dtd  -->
<!--
    Description : Geotechnical Markup Language Core Tags
    Author : Mete Oner
    Update : Febuary 27, 2001
-->
<!DOCTYPE GML [
<!ELEMENT GML (Prolog+, Office?, Field?, Laboratory?)>
<!--Prolog header-category-->
<!ELEMENT Prolog (Project+, Authorization?, Security?)>
<!ELEMENT Project (Name, Date, SecurityLevel?, Status?)>
<!ELEMENT Authorization (Signature, AuthorizationCode, AuthorizedBy)>
<!ELEMENT Security (SecurityMethod, PublicKey, AuthorizationCode,AuthorizedBy)>
<!ELEMENT Name (#PCDATA)>
<!ELEMENT Date (#PCDATA)>
<!ELEMENT SecurityLevel (#PCDATA)>
<!ELEMENT Status (#PCDATA)>
<!ELEMENT Signature (#PCDATA)>
<!ELEMENT SecurityMethod (#PCDATA)>
<!ELEMENT PublicKey (#PCDATA)>
<!ELEMENT AuthorizationCode (#PCDATA)>
<!ELEMENT AuthorizedBy (#PCDATA)>
<!--Office Category-->
<!ELEMENT Office (Prep?, Specs?, Report?)>
<!ELEMENT Prep (#PCDATA)>
<!ELEMENT Specs (#PCDATA)>
<!ELEMENT Report (#PCDATA)>
<!--Laboratory Category-->
<!ELEMENT Laboratory (Index+, Mechanical?, Special?)?>
<!ELEMENT Index (LL?, PL?, NaturalWaterContent?, GrainSizeCurve?)>
<!ELEMENT LL (#PCDATA)>
<!ELEMENT PL (#PCDATA)>
<!ELEMENT NaturalWaterContent (#PCDATA)>
<!ELEMENT GrainSizeCurve (#PCDATA)>
<!--Field Category-->
<!ELEMENT Field (Borings+, Samples?, FieldTests?)>
<!ELEMENT Borings (#PCDATA)>
<!ELEMENT Samples (#PCDATA)>
<!ELEMENT FieldTests (#PCDATA)>
<!ENTITY Geotech "Geotechnical">
<!NOTATION gif SYSTEM "PSP.exe">
<!NOTATION jpg SYSTEM "PSP.exe">
<!NOTATION cgm SYSTEM "Computer graphics metafile">
<!-- Associates .gif files with PaintShop Pro -->
] >
<GML/>

