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Subject: Re: [egov] Naming and Design Rules for E-Government
>Spencer: My approach has therefore been to use XML Schema to define the international >standard, then Schematron to add constraints to form a national standard. >This is the approach we used within OASIS for the Election Markup Language. >We have been using this successfully in the UK and it will shortly be >adopted in many other countries. The approach is to define the international >standard using XML Schema, then the national standard using Schematron *just >to indicate the additional constraints*. The Schematron forms the normative >definition of the constraints (and has the additional advantage that it can >express constraints that XML Schema cannot) but it is then up to >implementers whether they implement this two-stage validation or choose some >other mechanism. I have implemented a validator that checks EML messages >first to the international standard, then the additional national >constraints. > > mm1: Paul, one point of reference. One other standard's effort of which I am involved, has decided to use XSL transformation instead Schematron, mainly because a standard should be based (if needed) on other standards not tools. Food for thought. Thanks. >..... >The description of the EML UK Customization and the Schematron schemas >themselves can be downloaded from >http://www.govtalk.gov.uk/schemasstandards/agreedschema_schema.asp?schemaid= >201. > >Regards > >Paul Spencer >Director >Boynings Consulting Ltd >http://www.boynings.co.uk > >
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