...
4) Encounter Attributes and Obs Attributes may be the most suitable option, we have talked of implementing this for OpenMRS previously, but never really got around to doing it.
Issue no. 02:
Support for unstructured data.
As discussed previously on the mailing list, we need to develop an approach to persist unstructured data such as CDA documents as observations. This requires improvements to the existing OpenMRS Notes stub.
Issue no. 3:
Supporting laboratory data.
In certain cases, a single lab result may be persisted as multiple observations grouped together because of the lack of a proper data type to store structured numeric lab results
Indirectly related issues-
We need to consider any potential methods to improve performance around our Obs table, which can become very massive and cumbersome to use as time passes.