UMLDI — Section: Annex C

I was looking over the specification wanting to create a program that will be able to produce and read the format. However, I could use some clarification in Annex C, C.2.1 Class Diagram. There is no representation for an association. I had been, for a short time, believed that it was DiAssociationClass, but upon looking that up, I found it was not. For DiAssociationEnd, the tree does not match up with the example, as I understand it, in Annex B. Annex C says that the RoleAdornment should product a node with simpleSemanticModelElement of 'RoleAdornment'. But there is no such nesting. The GraphNode(<AssociationEnd>)'s next nestings go straight to 'name', 'visibility', and 'multiplicity'. Could you clarify this for me? Also in the zip example, there is an undefined compartment used called 'ExpressionCompartment'. DiAssociationClass refers to 'Stereotypes'. Is that supposed to be StereotypeCompartment? In C.1, there are a few areas where ',' appears that is should be '<'.