SDX is operational evidence governance infrastructure for institutions that need decision-grade evidence without relying on unverifiable analytics or black-box recommendations.
An institutional question is the decision-facing question that initiates an SDX process.
A bounded mandate is an institutional question transformed into a governed, scope-limited analytical instruction.
A sealed run is an immutable execution package produced by an SDX process.
An evidence chain is the structured provenance path that connects a statement or analytical value back to its source-level basis.
A claim boundary defines what may be stated from the available evidence.
A Non-Use Boundary defines what SDX must not claim, infer, recommend, or allow as decision material.
Statement governance defines which statements may be made from the available evidence and under which boundaries.
A possibility space is the decision-facing structure that shows multiple defensible pathways or interpretations supported by the governed evidence.
A report data package is the governed machine-readable projection of an SDX evidence process.
An LLM input package is the controlled interface between governed report data and a language model.
The LLM Boundary defines what a language model may and may not do in SDX.
An SDX report is the human-facing rendering of governed report data.
A commissioned SDX dossier is a mandate-specific institutional evidence product.
An SDX reference deployment is a public demonstration of a method or evidence layer.
A reproducibility statement connects a human-facing report or report-data package back to the sealed execution that supports it.
A source run hash is the trust anchor for a sealed SDX run.
The appendix index is the controlled reference layer between report-facing structures and sealed artifacts.
Sealed artifacts are the preserved machine-readable files that make an SDX run auditable.