Concepts

Domain and data-model background: what an AUC experiment, scan, scan set, cell, optical system and radial axis mean in this library, and how the canonical model (docs/decisions/ADR-0002) represents them.

• data model — the two-layer canonical representation.
• units — declared units, retained and never converted.
• missing & unknown values — the explicit present/missing/unknown/not-applicable distinction.
• optical systems — what is represented, and what is not.
• validation tiers — the four questions validation answers, and the fifth it refuses to.
• analysis readiness — metadata presence reporting, and why scientific suitability is never assessed.
• plotting — basic scan plots that render what is stored and interpolate nothing.
• synthetic data — reproducible illustrative datasets for tests and demonstrations; not a simulation.