Model implementation
OpenDeco separates a named decompression model from the version, implementation and configuration that turns it into executable behaviour.
Model identity
A family name is not enough. Each runnable record identifies the family, version or coefficient set, implementation, configuration and supported exposure capabilities.
Primary-source implementation
OpenDeco prefers primary equations, official source code, original tables and authoritative technical documentation. Secondary descriptions may guide discovery but do not silently replace an available primary source.
Recreated versus original
A recreated implementation is labelled as recreated even when it matches published examples. OpenDeco does not imply that reconstructed code is the original author's implementation.
Numerical verification
Implementations are tested against published examples, golden vectors, table values or other defensible reference outputs. Numerical tolerance and platform differences are documented.
Configuration
Settings such as gradient factors, ascent constraints, gas options and conservatism parameters are versioned as configuration, not promoted into separate model families.
Proprietary and black-box systems
Where lawful observation is possible but source code is not, OpenDeco records the system as black-box and limits claims to observed behaviour. Output resemblance is not used to invent an internal algorithm.
Versioning
A scientific change to an implementation creates a new version. Released benchmark results remain tied to the previous version and do not change in place.