I am aware that the relationship between connection object and premise is 'one to many'. However, I have come across in few utilities industries (predominantly in UK) that they are maintaining 'one to one' relationship. When enquired the reason given was (in addition to few other trivial reasons) to maintain proper relationship with Ordinance Survey data (Postal Address data) and ease in fetching premise address.
My concern is, in the process of maintaining 'one-to-one' relationship the premise object is made almost redundant. Other than few technical benefits I couldn't find any pressing business benefits that I could get to suggest a migration towards 'one-to-many'.
Even though SAP House suggests that the relationship should be 'one-to-many' the verbatim in the SAP help document is not explicit, in fact there is a bit of ambiguity. Reproducing the verbatim for easy reference; "A connection object is usually a building but can also be a piece of property or a facility, such as a fountain or construction site."
My question is what are the positives and negatives of maintaining 'one-to-one' relationship between connection object and premise?