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Subject: Re: [ubl-dev] Order items - substitution items - optimization
At 01:14 PM 2007-01-17 -0700, David RR Webber \(XML\) wrote: >Folks - just reviewing this - seems like Buyer and Seller substitution >items are identical structurally (but HUGE!) - therefore it would make >more sense to just have one of them in the schema structure - >repeatable - and then a mandatory LineType of either "Buyer" / >"Seller". I'm afraid this would discard the whole point of cementing the semantics of "Buyer" with the Buyer tag and the semantics of "Seller" with the Seller tag which UBL 1.0 & 2.0 so readily provide now. Informatically, you cannot throw away, or rather optimise (to put it more nicely), the bit information of "Buyer/Seller". This means that if you have a GenericBuyerOrSeller tag, you're going to need a flag of some sort as a child of that to distinguish them apart. The decision to use either <GenereicBuyerOrSeller> <Flag>I-am-a-Buyer</Flag> ... </GenereicBuyerOrSeller> <GenereicBuyerOrSeller> <Flag>I-am-a-Seller</Flag> ... </GenereicBuyerOrSeller> OR <Buyer>...</Buyer> <Seller>...</Seller> is thrashed out within UBL, and I suppose the common wisdom coming out of UBL 1.0 & 2.0 is the latter form. Best Regards, Chin Chee-Kai SoftML Tel: +65-6820-2979 Fax: +65-6820-2979 Email: cheekai@SoftML.Net http://SoftML.Net/
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