[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: syntax, model
Even where semantics are shared, it doesn't necessarily lead to a common data structure. What may be an appropriate structure for XML serialization of data may not work so hot as a object containment hierarchy. I'm not talking about differences in physical data models, but differences in how logical models with share semantics are structured. For example, I'm trying to merge two similar but independently developed data models right now. Both are built on different assumptions, and some entities are different; but there are also entities that are 'missing' from one of data models. It's not that they don't logically exist, it's that they're implicit in one of the domains and explicit in the other. Merging these two models involves the trick of hiding these 'extra' (assumed) entities under existing interfaces for one of the domains. Navigation to data fields may now involve more steps for this domain, but it's not obvious from the interface; however, it will be explicit for the other. I guess I would say (arguably, I admit) that they're both operating on the same physical model and the same semantics, but the logical models are somewhat different.
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|