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RE: Strategy for upgrading schemas to XML Schema 1.1?

• From: "Costello, Roger L." <costello@mitre.org>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Tue, 26 Apr 2011 09:16:41 -0400

Ah, excellent. Thanks Michael. So, here is a skeletal strategy for upgrading to XML Schema 1.1:

Step #1: Switch to an XML Schema 1.1 validator. Since a 1.0 schema is a 1.1 schema this change will have no impact.

Step #2:  Eliminate a processing step that's currently occurring after XSD validation (XML Schema 1.1 can do what you are currently doing in Java code or with Schematron).

Step #3: Do stricter/stronger validation than you are currently doing (there's lots of facilities in XML Schema 1.1 for this).

Step #4: Make your schema components more reusable.

/Roger


-----Original Message-----
From: Michael Kay [mailto:mike@saxonica.com] 
Sent: Tuesday, April 26, 2011 9:02 AM
To: xml-dev@lists.xml.org
Subject: Re:  Strategy for upgrading schemas to XML Schema 1.1?

On 26/04/2011 13:46, Costello, Roger L. wrote:
> Hi Folks,
>
> Has anyone developed a strategy for upgrading their XML Schemas to XML Schema 1.1?
>
> A 1.0 schema is a 1.1 schema. Thus, you can switch to using a 1.1 validator today and there will be no impact. Switching to using an XML Schema 1.1 validator is step #1.
>
> What's the next step?
>

Depends on your business objectives. For example, you might want to 
eliminate a processing step that's currently occurring after XSD 
validation, or you might want to do stricter/stronger validation than 
you are currently doing, or you might want to make your schema 
components more reusable.

Michael Kay
Saxonica

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• References:
  • Strategy for upgrading schemas to XML Schema 1.1?
    • From: "Costello, Roger L." <costello@mitre.org>
  • Re: Strategy for upgrading schemas to XML Schema 1.1?
    • From: Michael Kay <mike@saxonica.com>