The Evolution of Useful Things A Book by Henry Petroski Here, then, is the central idea: the form of made things is always subject to change in response to their real or perceived shortcomings, their failures to function properly. This principle governs all invention, innovation, ingenuity. Spike and sponShaped and reshapedForm follows failureTheir wrongness is somehow more immediateA small corner of the world of things+23 More The evolution of devices formfunctioninventionprogressfailure
Silicon Valley Product Group A Website by Marty Cagan svpg.com The best companies go about building great products differently. Silicon Valley Product Group (SVPG) was created to share lessons learned and best practices about how to build innovative products customers love softwareleadership