A specific developed real product often gets a model name. Motor cars manufactured by different companies are distinguished on the basis of their different brand names. Within the company a distinction is made between different model names for different product ranges. Synthesizer manufacturers with brand names such as Korg, Roland and Yamaha have different models of synthesizers and other products. In the documentation I will attempt to make explicit possible ambiguous usages.
Module There are also theoretical modules and product modules.
A theoretical module is a subsystem of a larger system. Product module A scaled-down version of a product is usually called a module. For example, a synthesizer keyboard with onboard processors may have an equivalent product containing all the processors, but not the keyboard or same user interface. Such a scale-down version of the product is usually called a module. The theoretical MML module does not necessarily have a product module counterpart.