Project lead of the Eclipse Modeling Framework
project since 2001.
The Eclipse Modeling Framework provides the core technology for Eclipse's stack of modeling technologies and well beyond that,
e.g., it is used by the Eclipse Platform project for modeling the state of the workbench so is ubiquitously available in all Eclipse installations.
It has evolved to become the defacto, industry-standard Java implementation of EMOF
and is used by a broad range of commericial adopters.
This technology can be used to build functionally-complete applications quickly and easily,
so quickly that it's often possible to produce an initial prototype during
an initial consulting session.
No one knows better how to exploit this stack of technologies.