The AEFTA (Application Enabler Technology for Factory Automation) experiment, which involves Digital Equipment Corporation, Politecnico di Torino and SYCO, with staff of seven, develops a factory automation product using BASEstar Open (1990) and object technology, notably OMT (Rumbaugh et al. 1991), G++ (Menga et al. 1993) and C++. The goal of the application experiment is to verify if object o...