The following shows the <OutlineCode> element structure for Microsoft Office Project 2003.
<Project>
. . .
<OutlineCodes>
<OutlineCode>
<FieldID/>
<FieldName/>
<Alias/>
<PhoneticAlias/>
<Values>
<Value>
<ValueID>
<ParentValueID>
<Value>
<Description>
</Value>
</Values>
<Enterprise/>
<EnterpriseOutlineCodeAlias/>
<ResourceSubstitutionEnabled/>
<LeafOnly/>
<AllLevelsRequired/>
<OnlyTableValuesAllowed/>
<Masks>
<Mask>
<Level/>
<Type/>
<Length/>
<Separator/>
</Mask>
</Masks>
</OutlineCode>
</OutlineCodes>
</Project>