The process of the production of copper and bronze is presented in this paper as a sequential operation. Each stage of this process may influence the final product. The deconstruction of the process is a convenient way of examining each individual stage, using archaeological case studies from different places within the Old World and, where useful, ethnographic studies. The examination will focus on two aspects: innovation and specialization. It seeks to move beyond technological determinism by relating the study of technology to the context of those societies which shaped and practised it and which exercised certain choices in its execution.