  In the paper by D. Regulin et al. (IEEE Trans. On Automation Science and
Engineering, vol. 13, no. 4, 1422-1432, October 2016) authors claim that they
present a meta-model for the modeling of the Automated Material Flow Module
(aMFM) and a model-driven design approach for aMFMs. In this letter we comment
on the presented meta-model and the proposed model-driven approach regarding
their potential for exploitation. We present specific arguments and make cases
that call the authors design decision into question.
