Model-driven architectures (MDA) became obsolete before reaching full maturity. This a reflection of the market shift to more general, model-driven development approaches.
Why isn't modelling common place?. In this post I identify five main reasons we need to address to make modeling mainstream.
(Note that I’m strictly referring to the MDA standard, not to model-driven engineering in general). In
Model-driven Architecture (MDA) is the OMG´s view of model-driven development (see clarifying concepts: MBE vs MDE