The Mother of All Demos A Lecture by Douglas Engelbart en.wikipedia.org A name retroactively applied to a landmark computer demonstration, presented by Douglas Engelbart on December 9, 1968. The 90-minute presentation essentially demonstrated almost all the fundamental elements of modern personal computing: windows, hypertext, graphics, efficient navigation and command input, video conferencing, the computer mouse, word processing, dynamic file linking, revision control, and a collaborative real-time editor Menus, Metaphors and Materials: Milestones of User Interface Design interfacestechnology
Complete and consistent requirements An architect who needs complete and consistent requirements to begin work, though perhaps a brilliant builder, is not an architect. Mark W. Maier & Eberhardt Rechtin, The Art of Systems Architecting What the problem isThe heart of systems engineeringA late change in requirements is a competitive advantage architecturedesign