The Design of Design (Cambridge Engineering Series) A Book by Gordon Clegg www.amazon.com What the problem is
Tool-being Take Heidegger's notion of "tool-being", built around the central distinction between tools that are "ready-to-hand" versus "present-at-hand". In the former state, technologies function as anticipated, do and stay where they're supposed to, and therefore sink below the level of conscious reflection. In the latter, the material world resists, obstructs, or frustrates action, and therefore calls attention to itself (precisely because we must now work to figure out and overcome barriers in our no-longer seamless world). Steven J. Jackson, Rethinking Repair To be truly simple tools