 Wylie’s and Wright’s analyses exemplify how a relational approach to data fosters a normative understanding of “good evidence” which is anchored in situated judgement—the arguably human prerogative to contextualise and assess the significance of evidential claims. The advantages of this view of evidence are eloquently expressed by Nancy Cartwright’s critique of both philosophical theories and policy approaches that do not recognise the local and contextual nature of evidential reasoning. As she notes, 