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Subject: comments Re: [ubl] First Draft of Chapter 1 Customization document
comments *Excellent* and very welcome overall. I've a few comments below: 3.1 "...A major advantage of UBL conformance is that the resulting instances can be processed by any off-the-shelf UBL application. This negates the need for bespoke software or modifications to UBL applications." Not all off-the-shelf UBL applications can process all conformant instances. Most off-the-shelf UBL applications will only be able to handle subsets and if the application subset isn't a subset of the conformant customized subset there may be a problem, I think. However, there is a likelihood that such mismatches might be handled more gracefully and more affordably than with compliant customizations, I think. 3.2 "...Schema-valid instances of a compatible customization are not necessarily schema-valid instances of UBL; however, the reverse may be true." Need to state what is meant by 'the reverse'. There are various logical answers to what 'the reverse' might mean, plus it might not be easy for the reader to deduce. 3.2.2.1 "...or indeed a completely new data may be required." I think that should be "...a completely new datatype ..." 3.2.4 "... * Customizing a Data Type creates a new BBIE * Customizing a BBIE creates a new ABIE * A customized ABIE means creating a new ABIE * Customizing an ASBIE creates a new ABIE * Any new ABIE means a new document model " is it also true that a customized ABIE means creating new ASBIE(s) ? General comment on 'compliance' (re semantics): need to cover changes of meaning of any BIE - I suggest semantics have to be preserved (to be compliant with UBL's design rule for its own development) such that any definition change which amounts to a semantic change requires a new BIE too. The ripple effect then applies to this kind of change too. Also it warrants a new qualifier as well, in short it amounts to the same kinds of changes as a change to the structure of a BIE or datatype. The same applies to a change to the semantics of a datatype. Best regards and much appreciation -- Stephen D. Green Partner SystML, http://www.systml.co.uk Tel: +44 (0) 117 9541606 http://www.biblegateway.com/passage/?search=matthew+22:37 .. and voice Quoting mavis.cournane@cognitran.com: > please find a draft copy of Chapter 1 of the Customization document > for discussion this afternoon in the plenary. > Note that Sections 1-3 only are relevant for this, other sections will > form subsequent chapters and are place holders only. > > Regards > Mavis and Mike
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