HypothesisVery high confidenceCurrent

A common semantic-model file format does not by itself guarantee equal results across analytical runtimes.

Define an explicit portable subset.

Valid from2026-08-23

Last reviewed2026-08-23

Review again2026-11-21

Dataheart stanceexploring

Evidence for

Ossie 0.2 permits multiple expression dialects and arbitrary vendor extensions.

The Ossie roadmap still lists a formal metrics language, semantic query standard and reference query engines as future work.

Power BI calculation results depend on runtime-specific filter and relationship semantics.

Evidence against

A sufficiently narrow expression subset with identical source data can be portable.

A single shared execution engine can provide consistency to multiple consumer tools.

How this claim can fall

Replace this placeholder during human review with an observable result that would materially weaken or falsify the claim.

A published claim remains useful only while it remains possible to prove it wrong.