This paper deals with the problem of simultaneous standardization of a set of modules and of multiple sets of components that may be combined in these modules. The aim is to minimize future costs. The components and modules, whether already existing or yet to be created are not related to predetermined BOMs. The problem takes into account coupling constraints between components because not all components included in a module may be coupled (coupling restriction), although some of the restrictions can be lifted through “junction components”. Our approach is readily implemented and significantly improves decisional consistency when compared to the standardization approaches that deal with the problem in isolation as opposed to globally. It also matches the level of detail used in large organizations for forecasting purposes. This approach is illustrated with a real case study of great dimension.