Bart D'Hooghe is assistant professor at the 'Brussels Free University (Vrije Universiteit Brussel - VUB)' and co-ordinator of the 'Leo Apostel Centre for Interdisciplinary Studies (Clea)', an interdisciplinary and interuniversity (VUB, UGent, KULeuven) research centre, where researchers of different disciplines work on interdisciplinary projects. He is Secretary of the 'International Quantum Structures Association (IQSA)'. In May 2000 he obtained a Ph.D. in Sciences at the Leo Apostel Centre for Interdisciplinary Studies (Clea) at the VUB with a dissertation covering the foundations of quantum mechanics, quantum logic and fuzzy set theory. As a Postdoc Researcher, he has continued working on the elaboration of a general operational formalism containing both quantum theory and classical theory as special cases, as well as the application of this general approach in various fields of science in an interdisciplinary setting. Currently, he is exploring the role of contextuality (which in the meanwhile has been identified as one of the key ingredients in the nature of quantum entities) in different fields of science: besides physics, applications can be found in cognitive science, decision theory, economics, sociology, evolutionary biology and so on.