Publisher Summary This chapter focuses on the philosophy of technology. Any systematic philosophical discussion of the normativity of technology should be based on a plausible account of the very idea of ‘technology’. Explaining and defending the claim that technologies are inherently normative requires, first, a plausible account of the notions of ‘technology’ and ‘normativity’ is essential. The distinct elements of this characterization of technologies can be described as a system. A system is any aggregate (or collective) of mutually interacting material entities within a certain region of space and time. Thus, a system possesses not only a spatial but also a temporal dimension, which allows to see processes as systems. Although the notion of a system may also be used in more substantial ways, this unassuming definition is appropriate in the present context. It may also be phrased by saying that technologies have a systemic character, because they result from bringing, and keeping, together two or more material entities.