01 — Product Vision

Status

PRODUCT_VISION=FROZEN_TARGET

Authority

docs/product/product_definition.md is the product authority.

REQUIRED_PRODUCT_TARGET

Lardon3D is a persistent, incremental, resource-aware Linux photogrammetry system controlled primarily by an ncurses TUI, with a required companion graphical viewer.

The product must let a user:

create and reopen durable projects;
ingest traceable still, future live-device, and video-derived captures;
manage camera/lens/optical configurations without code changes for ordinary equipment;
reach explicit calibration readiness;
execute the existing scientific pre-SfM and Sparse SfM pipeline without invented science;
produce durable Dense/MVS, mesh, refinement, texturing and exports;
inspect sparse/dense/mesh/texture and camera evidence;
analyze coverage;
receive actionable supplementary-capture guidance;
use live A6000 HDMI and S21 acquisition adapters without forking the scientific pipeline;
restart after crashes/reboots without hidden transient knowledge.

Principles

SCIENTIFIC_TRACEABILITY=REQUIRED
DETERMINISM=REQUIRED
PERSISTENT_PROGRESS=REQUIRED
ATOMIC_PUBLICATION=REQUIRED
BOUNDED_EXECUTION=REQUIRED
MAXIMUM_SAFE_USEFUL_THROUGHPUT=REQUIRED
SERIALISM_REQUIRES_PROOF=REQUIRED
NO_SILENT_SCIENTIFIC_SUBSTITUTION=REQUIRED
NO_DESTRUCTIVE_AUTOMATION=REQUIRED

The system must expose uncertainty rather than replace it with guesses.

Canonical-reference rule

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