[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Announce: Revised UBL 2.0 instance pruning filters
There is a section in the public review draft on UBL Customization that addresses a validation processing model to support forward compatibility: http://docs.oasis-open.org/ubl/guidelines/UBL-Customization1.0prd01.html#_Toc210463567 Figure 20 repeats the original processing model described in the UBL 2.0 specification. Figure 21 illustrates a forward-compatible processing model that, when adopted for a deployment, allows schema-valid-based applications to always inspect any incoming instance for content by massaging that instance when it is not schema valid to begin with. Supposedly for a complete UBL implementation this is because the incoming document is an instance of a later minor version schema. For a customized UBL implementation this could be either that the incoming document is an instance of a later minor version schema, or an instance of a more complete UBL that has standardized constructs not expected for the customization. The crux of the forward-compatible processing model is the "version filter" (labeled "F"): a pruning process of some kind (depicted as an XSLT process but really could be implemented in any programming language) used to remove from the incoming UBL instance any constructs not recognized by the deployed version or customization of UBL. I'm pleased to announce today Crane Softwrights Ltd.'s latest release of UBL 2.0 instance pruning filters in both XSLT and the Python programming language (you need only use one of the two, not both): http://www.CraneSoftwrights.com/resources/ubl/index.htm#filter Those who are reviewing the UBL Customization guidelines through experimentation can use these filters "off the shelf" without modification to prune non-UBL-2.0 constructs from an XML document. This latest release addresses extension pruning deficiencies in the release from over a year ago, found in some recent experimentation. Feedback is welcome. . . . . . . . . . . . . . Ken cc: UBL TC, UBL Dev -- Upcoming XSLT/XSL-FO hands-on courses: Wellington, NZ 2009-01 Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video Video sample lesson: http://www.youtube.com/watch?v=PrNjJCh7Ppg Video course overview: http://www.youtube.com/watch?v=VTiodiij6gE G. Ken Holman mailto:gkholman@CraneSoftwrights.com Crane Softwrights Ltd. http://www.CraneSoftwrights.com/o/ Male Cancer Awareness Nov'07 http://www.CraneSoftwrights.com/o/bc Legal business disclaimers: http://www.CraneSoftwrights.com/legal
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]