serial production
pre-
development
model 2
model 3
CAD
1D-
Sim.
development
of prototypes
prototype 1
prototype 2
1D-
Sim.
tests
CAD
model 1
CAD
1D-
Sim.
tests
identification
of promising
models
identification
of prototypes
suitable for series production
series production
3D-
Sim.
3D-
Sim.
ECU
ECU
QM