Sample stand definition
| Category | Description | RC | MTBF | MTTR |
|---|---|---|---|---|
| Functional model | Goal: Testing of concepts Testing of selected components for suitability to the concept Very limited range of functions Assume low reliability of the system |
>50% | < 7 d | < 14 d |
| Prototype | Goal: Testing of the concept Validation of the suitability of the components Validation of the functions and the technical requirements |
>80% | < 30 d | < 7 d |
| Pre-series | Goal: Testing of the entire range of functions Endurance testing of the system in various application scenarios Validation of the safety functions |
>95% | < 90 d | < 3 d |
| Series | Goal: Product stand for end customers Quality proofs according to the specifications Series parts, series status released |
>99% | > 365 d | < 2 d |
RC = Requirements Coverage
MTBF = Mean Time Between Failure
MTTR = Mean Time To Repair
