Minimum Data Requirements - Multi-Phase Data

For reliability growth data analysis only.

The minimum data requirements for analysis of developmental multi-phase data are presented next:

Data Type

Minimum Requirements

Models

Failure Times

At least 3 unique failures.

Crow Extended - Continuous Evaluation: maximum of 10 phases

Grouped Failure Times

At least 3 unique failures.

Crow Extended - Continuous Evaluation: maximum of 10 phases

Mixed Data

At least 3 intervals with at least 1 failure in each

BD modes - at least 3 unique

Crow Extended - Continuous Evaluation: maximum of 10 phases