If this reference is not set then EObjectActionProvider creates a new Action using AppFactory in newAction() method. If this reference is set and is Action then a copy of the action is created and returned. Otherwise the reference value it is adapted to ActionProvider which is used to create an action. This allows to merge actions and chain action generation. E.g. generate Ecore model documentation and merge it into the Engineering documentation.
Experts have expertise with the element, but no authority. E.g. they can help others with using the element, but cannot make changes in the element without owners’ approval.
Engineers which represent this persona. E.g. in a hierarchical organization some units or engineers may build products for internal customers - other units or engineers. In this case some of those internal customers act as persona representatives and work with the persona owner to identify persona goals and product features to address those goals.
If element’s URI is not set then its default value is derived from the container URI and containment reference. This is a logical URI and it can be used for cross-referencing of elements in a resource-independent fashion.