{
  "id": "https://uofa.net/nagaraja/cou1/factor/numerical-solver-error",
  "type": "CredibilityFactor",
  "factorType": "Numerical solver error",
  "requiredLevel": 3,
  "achievedLevel": 3,
  "factorStatus": "assessed",
  "acceptanceCriteria": "Goal (c): convergence-tolerance sensitivity studies performed; nonlinear solver iterations checked for residual decay. [Nagaraja Table 1, NSE]",
  "rationale": "Each lab tightened convergence tolerances by an order of magnitude as a sensitivity check; QoI changes were below experimental measurement noise.",
  "factorStandard": "ASME-VV40-2018"
}