La escalera filosófica de Ulrich

La escalera filosófica del desarrollo de Sistemas de Información, Adaptado de Ulrich, W. A discursive approach to reflective practice in ISD, Part 1: A philosophical staircase for information systems definition, design, and development. JITTA, Journal of Information Technology Theory and Application, 3, No. 3, 2001(http://wulrich.com/downloads/ulrich_2001b.pdf)