Subject: Re: [ubl] Draft 2.0 Schemas with Currency Codes edited to unions
Marty, I'm afraid I don't agree with you that this is a good compromise. I understand that you have a solution that supports some of our goals. However, and this is a big point: ---- What is the value of a Schema enumeration that doesn't provide any validation of instance document values against the enumerated values? ---- As you pointed out, it gives you pop-ups for enumeration values in XML Spy (and perhaps in some other XML editors too), but I don't see that as a major requirement or use case. In fact, I think people would be scratching their heads about why we would publish enumerated Schema types that don't perform validation. If we aren't going to validate the values, let's just leave the values out of the Schema. If we have enumerated values in the Schema, let's make sure that can be used for validation. I know that the various constraints that we have picked up are making it difficult to find a workable solution, but I want to suggest that the guidelines in this paragraph are ones we have to follow so that we end up with something that the rest of the world will consider to be sensible. Fair comment, or not? Cheers, Tony. On Wed, 07 Dec 2005 15:31:23 -0000, <Burnsmarty@aol.com> wrote: > Stephen, > This is not a problem. We verified that the use of union of token and > code > list would not permit automatic validation in parser. However, you can > see that > the parser does understand the code set and note that in XMLSpy you can > pick > from the list of codes. > By precluding the use of substitution groups in the UBL schemas, it is > not > possible to constrain the acceptable values in the schemas. However, use > of > union allows others to restrict from this definition which was not > possible > otherwise. > This is, therefore, what I think is the best compromise given other NDR > decisions. > Marty > In a message dated 12/7/2005 10:01:24 A.M. Eastern Standard Time, > firstname.lastname@example.org writes: > > Marty -- Anthony B. Coates London Market Systems Limited 33 Throgmorton Street, London, EC2N 2BR, UK http://www.londonmarketsystems.com/ mailto:email@example.com Mobile/Cell: +44 (79) 0543 9026 [MDDL Editor (Market Data Definition Language), http://www.mddl.org/] [FpML Arch WG Member (Financial Products Markup Language), http://www.fpml.org/] ----------------------------------------------------------------------- This Email may contain confidential information and/or copyright material and is intended for the use of the addressee only. Any unauthorised use may be unlawful. If you receive this Email by mistake please advise the sender immediately by using the reply facility in your e-mail software. Email is not a secure method of communication and London Market Systems Limited cannot accept responsibility for the accuracy or completeness of this message or any attachment(s). Please examine this email for virus infection, for which London Market Systems Limited accepts no responsibility. If verification of this email is sought then please request a hard copy. Unless otherwise stated any views or opinions presented are solely those of the author and do not represent those of London Market Systems Limited.