Suggestion: party id type qualifier

Hello,

The Energy  Interoperability schema has various types of party identifiers of type  xs:string.

It is common in  e-business schemas for Party Identifiers to have a  type  (or similar) attribute  that allows the identifier to be typed.
Examples of this are UN/CEFACT  XML business document schemas, Universal Business Language (UBL) 2.0,  Open  Application Group Integration Specification (OAGIS), the UN/CEFACT Standard  Business Document Header (SBDH),  Extensible Business Reporting Language  (XBRL), Financial Product Markup Language (FML),  ebXML Messaging (ebMS)  and Collaboration Protocol Profiles and Agreements (CPP/A).
An excerpt  from a UBL document might look like:

<cac:BuyerCustomerParty>    <cac:Party>      <cac:PartyIdentification>         <cbc:ID  schemeID= urn:oasis:names:tc:ebcore:partyid-type:iso6523:0088
>4035811991021</cbc:ID>      </cac:PartyIdentification>    </cac:Party> </cac:BuyerCustomerParty>

The  schemeID
attribute qualifies the buyer party identifier 4035811991021 as a GS1  Global Location Number (GLN) using the ebCore Party Identifier type  syntax ( http://docs.oasis-open.org/ebcore/PartyIdType/v1.0/ ).
The type specifies the  identifier scheme from which the identifier value is taken.   A similar mechanism to qualify identifiers might be  useful for Energy Interoperation.

Pim