Within contemporary philosophy, two apparently similar movements have gained atention recently, New Materialism and Object Oriented Ontology. Although these movements have quite distnct genealogies, they overlap on one key issue: they are both realist movements that focus on the object. In contrast to much twenteth-century thinking centered on the subject, these two movements address the seemingly overlooked question of the object. In shifting atention away from the anthropocentrism of Humanism, both movements can be seen to subscribe to the broad principles of Posthumanism. Are these two movements, however, as similar as they first appear? And how might they be seen to differ in their approach to digital design? This paper is an atempt to evaluate and critque the recent strain of Object Oriented Ontology and question its validity. It does so by tracing the differences between OOO and New Materialism, specifically through the work of the neo-Heideg-gerian philosopher Graham Harman and the post-Deleuzian philosopher Manuel DeLanda, and by focusing on the question of the 'tool' in partcular. The paper opens up towards the question of the digital tool, questioning the connection between Object Oriented Ontology and Object Oriented Programming, and introducing the theory of affordances as an alternative to the stylistc logic of 'parametricism' as a way of understanding the impact of digital tools on architectural production.