Christopher Scaffidi Allen Cypher Sebastian G. Elbaum Andhy Koesnandar Brad A. Myers Scenario-Based Requirements for Web Macro Tools. 197-204 2007 conf/vl/2007 VL/HCC http://doi.ieeecomputersociety.org/10.1109/VLHCC.2007.47 db/conf/vl/vlhcc2007.html#ScaffidiCEKM07