RE: [ubl-ndrsc] Namespace Transitivity

["CRAWFORD, Mark" <MCRAWFORD@lmi.org>]

Matt,

Are you saying there is an issue with a decision we have made, or that there is a need for additional rules regarding explicitly importing namespaces in UBL?

Mark
> -----Original Message-----
> From: Matthew Gertner [mailto:matthew.gertner@acepoint.cz]
> Sent: Wednesday, February 26, 2003 12:28 PM
> To: UBL NDR
> Subject: [ubl-ndrsc] Namespace Transitivity
> 
> 
> From the XML Schema spec (Structures):
> 
> "Schema Representation Constraint: QName resolution (Schema Document) 
> 
> For a *QName* to resolve to a schema component of a specified kind all
> of the following must be true:
> 1 That component is a member of the value of the appropriate 
> property of
> the schema which corresponds to the schema document within which the
> *QName* appears, that is the appropriate case among the following must
> be true:
> 1.1 If the kind specified is simple or complex type 
> definition, then the
> property is the {type definitions}.
> 1.2 If the kind specified is attribute declaration, then the 
> property is
> the {attribute declarations}.
> 1.3 If the kind specified is element declaration, then the property is
> the {element declarations}.
> 1.4 If the kind specified is attribute group, then the property is the
> {attribute group definitions}.
> 1.5 If the kind specified is model group, then the property is the
> {model group definitions}.
> 1.6 If the kind specified is notation declaration, then the 
> property is
> the {notation declarations}.
> 2 its {local name} matches the *local name* of the *QName*; 
> 3 its {target namespace} is identical to the *namespace name* of the
> *QName*; 
> 4 its *namespace name* is either the target namespace of the schema
> document containing the *QName* or that schema document contains an
> <import> element information item the *actual value* of whose 
> namespace
> [attribute] is identical to that *namespace name*."
> 
> As described in point 4, for a namespace to be referenced it MUST be
> imported explicitly (or be the target namespace of the schema in
> question). If a namespace is imported by an imported schema it is not
> accessible (i.e. namespace imports are not transitive).
> 
> Matt
> 
> 
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