- annotations on OPM graphs: agreement reached (see wiki [ ] for details)
- ways to refer to artifact values: there is a need for a common identifier scheme, and artifacts must be URLs that can
be resolved by a service.
- typing: a hierarchical type system (i.e., user-defined types and sub-types) can be used for artifacts and processes. This is not entire clear to me (i.e., I thought we were referring to simple types only here). Types are annotations on graph nodes (to be clarified)
- nesting and more generally relationships of accounts: required but not yet fully addressed