Is an empty string value a null semantic value or an empty string semantic value?

[JeniT]

Should an empty string value always count as a null semantic value within the core data model (ie when there is no other metadata telling the processor how to interpret that value), or should the semantic value be an empty string?

[gkellogg]

Also see #61.

[JeniT]

Closed in favour of #61 which has the advantage of including a resolution.