 After CAP France and CAP Europe fused with "Sogeti", and the consequent acquisition of Gemini Inc. (USA), he became in 1975 Vice-President of Sogeti, a position he still holds today.Philippe Dreyfus is a member of the European Computing Services Association (ECSA) Council and was the founder of "Syntec Informatique".In 1962 he invented and defined the concept of programming language and in 1990 he introduced the concept of "informativity" (" Informativité" ).