Model state definition

Category Category Description RC MTBF MTTR
Functional model Objective: Testing concepts
Testing selected components for suitability for the concept
Very limited range of functions
Assume low reliability of the system
>50% < 7 d < 14 d
Prototype Objective: Testing the concept
Validation of the suitability of the components
Validation of the functions and technical requirements
>80% < 30 d < 7 d
Pre-series Objective: Testing 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 status for end customers
Proof of quality in accordance with the specifications
Series parts, series status approved
>99% > 365 d < 2 d

RC = Requirements Coverage
MTBF = Mean Time Between Failure
MTTR = Mean Time To Repair