An approach to the study of archaeological materials formulated by Michael B. Schiffer in the mid-1970s that privileged the analysis of human behaviour and individual actions, especially in terms of the making, using, and disposal of material culture. In particular this focused on observing and understanding what people actually did, while refraining from considering people’s thoughts and intentions in explaining that behaviour. A related area is Human behavioral ecology, which models material traces of human behaviour in terms of adaptations and optimisations.[15]