The case against heatmaps An Article by Oliver Palmer www.oliverpalmer.com Visualised aggregations of click activity are a low effort, low signal waste of time and best avoided in favour of actual research. uxmetrics
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