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Co-Constraint Dimension: Axis

In message Analysis of use cases for co-constraints Fabio Vitali proposed a set of dimensions for the evaluation of co-constraints use cases. This is an explanation of dimension axis.

Axis: the main axis to be used in the XPath expression

  • self
  • attribute, including siblings of attributes
  • child
  • descendant
  • parent/ancestor
  • preceding / preceding-sibling
  • following / following-sibling
  • unspecified