Because these terms are not elements used in the schemas, what we need to do is to decide on a style to use consistently. The compound word "SupportingElementsModel" is used three times before this instance in the data dictionary. However because this is not the name of an element, there is no need for it to be a compound term. So we need to choose a style and use it consistently. This may be something the RIM SC should address since this could turn up in other EDXL specifications.