... The ALMA Common Software (ACS) is a CORBA-based framework that provides a common and homogeneous infrastructure for the whole ALMA software, from high-level data flow applications down to instrument control (Schwarz et al., ... In this domain, ACS provides a generic abstraction of hardware control and monitor points that is independent of the software underneath. This abstraction layer is coupled to the hardware using the DevIO (Device Input/Output) interface, based on the Bridge design pattern. ...