How about versioning of the schematron schema?

Cheers

Stephen D Green

On 08/10/2014, Costello, Roger L. <costello@m...> wrote:
> Hi Folks,
> I think the below "10 Laws of Schematron Design" are good. I distilled them
> from examination of this [1]. I welcome your additions to these "Laws".
> /Roger
> -----------------------------------------------------------------------------------------------
> 1. Assign each business rule a unique identifier. For example, assign this
> rule:
>                Each Book must contain Title, Author, Date, ISBN, and
> Publisher
>                information.
> the ID: Books-ID-00015.
> 2. In each file place just one pattern element (i.e., the file doesn't have
> the schema element).
> 3. Give each pattern a unique identifier, e.g., <sch:pattern
> id="Books-ID-00015"
> 4. In each pattern element place one rule element and in the rule element
> place one assert element. Give the assert element the same ID as the pattern
> element, e.g., <sch:assert id="Books-ID-00015"
> 5. In the body of the assert element is a natural language description of
> rule. Start that description with the ID within brackets followed by [ERROR]
> followed by the natural language description, e.g.,
>                 <sch:assert test="..." id="Books-ID-00015">
>                      [Books-ID-0015][ERROR] Each Book must contain Title,
> Author,
>                       Date, ISBN, and Publisher information.
> 6. Give the filename the same name as the ID, e.g. Books-ID-00015.sch
> 7. Identifiers are all of the format Book-ID-XXXXX, with rule files named
> Books_ID_XXXXX.sch.
> Rationale for design guidelines 1-7: By following the guidelines there is
> complete traceability. Each business rule can be traced to exactly one
> Schematron implementation. Conversely, each Schematron implementation can be
> traced to exactly one business rule. Also, it is easy to change an
> implementation of a rule: simply replace the file containing the rule with
> another file that implements the same rule.
>
> 8. Create a Book Schematron Guide which describes every file, e.g.,
>
>
>
> 2.1 - Rules/Books/Books_ID_00015.sch
>
>
>
> Rule Description: Books-ID-00015 Each Book must contain Title, Author, Date,
> ISBN, and Publisher information.
>
>
>
> Code Description: If the context item is a Book, then ...
>
>
>
> Schematron Code: -- show the Schematron code here -
>
>
>
>
> 9. Create a top-level Schematron file. This file has no patterns or rules.
> It has the schema root element. It has all namespace declarations. It
> includes all of the other files. It defines any variables that will be
> needed in any of the files. It defines any (XSLT) functions that will be
> needed in any of the files. Validate instance documents against this file;
> the instance document will be validated against all the rules defined in all
> the files.
>
>
>
> Rationale for design guideline 9: No need to perform multiple Schematron
> validations; simply validate instances against this top-level Schematron
> file. There is a single, central place where namespaces and variables and
> functions are defined, so it is easy to adjust them, when needed.
>
>
> 10. Identify common information patterns in the business rules; define the
> pattern once (use Schematron abstract patterns and abstract rules); reuse
> the pattern wherever possible. Place the files that contain abstract
> patterns/rules in a "Lib" folder. Place the files that contain concrete
> (non-abstract) patterns/rules in a "Rules" folder and within there create
> subfolders, e.g., Books, Magazines, Articles.
> [1] http://www.dni.gov/files/documents/CIO/ICEA/Foxtrot/ISM_V10.zip
>

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