context hierarchy

["Kutlu Binark" <kbinark@gmail.com>]

hi all,

I do have a question related to customization of UBL schemas based on
context values. I am reading through "Guidelines For The Customization of
UBL v1.0 Schemas, Working Draft 1.0, 04/22/04". Section 3.3.1 states:

"..any given context driver can be specialized, but not reset. Thus, if the
Geopolitical context driver with a value of "USA" has been applied to a
type,
it is possible to apply it again with a value that is a subset, or that
occupies a hierarchically lower level than that of the original value, like
California or New York,
but it cannot be applied with a value equal or higher in the hierarchy, like
Japan. In order to use that latter value, one must go up the ladder of the
customization chain
and derive the type from the same location as that from which the original
was derived."

Is it safe to interpret above as; when a component 'C' is customized for a
context value 'X'; customized 'C' also becomes applicable for all context
values hierarchically lower than 'X'.

For the case of geopolitical context this assumption seems rather safe but I
could not be sure for other context drivers such as Industrial
Classification.

Thanks in advance,
Kurt Banark