I was also reading about asam a21 files which might be part of this software.
Yes and no:
Damos is ETAS (Bosch) specific description , A2L is more general..
So, A2L are supported by most application tools, Damos mostly by INCA
But at the end, you can deside in witch way application- and messasurement-values are defined: A2L or Damos