Three requirements for reproducible systems biology modeling. (1) The provenance
of every data source and assumption should be recorded so that models can be
regenerated, including every species, reaction, and rate law. (2) Every
simulation parameter value should be recorded so that numerical simulation
results can be regenerated. (3) Multiple simulation software tools should
generate statistically identical numerical results. Reproducibility is a
stricter standard than repeatability. Models are considered repeatable, but not
reproducible, if they satisfy just the second and third criteria.