Talk:Northbound interface

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[edit] Origins?

What is the origin of this term? Where did it originally appear and in what references is it usually found? I know it appears in ITU docs for example, but it usually seems that the authors assume the term is already well known to all potential readers, and efforts to define it, e.g. with examples, it are not easily found by search. Some external links would be useful. DKEdwards 21:26, 29 June 2007 (UTC)