Remove Cluster/Element classes from main abstract spec

Description

Remove representation link to ITEM; define interfaces only.
Move Hierarchical representation package to EHR_Extract Package. Use
classes such as X_LIST_S which inherit from LIST_S and add a
representation of type ITEM.

Rationale: removes need for EHR apps to use a particular

DK: This sounds quite radical! Unless I've misunderstood this is
likely to have quite an impact on how the openEHR model is understood
and cross-mapped to standards such as CEN and HL7. Suggest this should
not be rushed through now for version 0.9.
implementation - they just need to obey interfaces of data structures.
Hierarchical representation reserved for EHR extracts.

Note that hierarchical form is actually good for XML, but not for
relational databases.

Status

Assignee

JeffJ

Reporter

JeffJ

Raised By

None

Priority

Minor