Contribution groups and contexts are created, but not the actual ContributionChange object (together with its link to the target Contribution, and possibly its ContributionRange object if any). See http://www.site.uottawa.ca/~damyot/urn/URNMetamodelHTML/cat415c5d7e0138/cat4227da2c0145/dgm43d8f05b03ca.htm
Contribution groups and contexts are created, but not the actual ContributionChange object (together with its link to the target Contribution, and possibly its ContributionRange object if any). See http://www.site.uottawa.ca/~damyot/urn/URNMetamodelHTML/cat415c5d7e0138/cat4227da2c0145/dgm43d8f05b03ca.htm