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Add class for access to external environment

Description

Currently many classes in the openEHR models contain invariants which reference functions
from the interface classes in the rm.support.terminology package, but don't show how they
do it. The assumption to date has been that they would inherit from the interface classes
directly. This is clumsy, since it involves inheriting from a new class for each required
interface. A better model is needed, probably using a single abstract accessor class.

Status

Assignee

JeffJ

Reporter

David Lloyd

Raised By

None

Priority

Major