Musa-Okumoto Logarithmic Model
The failure intensity is:
Belongs to the mean value function
This is the functional form of the Musa-Okumoto logarithmic model:
Like Musa's basic execution time model, the "Logarithmic Poisson Execution Time Model" by Musa and Okumoto is based on failure data measured in execution time.
As the derivation of the Musa-Okumoto logarithmic model by the fault exposure ratio has shown, the exponentially decreasing failure intensity implies that the per-fault hazard rate has the shape of a bathtub curve.