Jack Beaton Sae Young Jeong Yingyu Xie Jeffrey Stylos Brad A. Myers Usability challenges for enterprise service-oriented architecture APIs. 193-196 2008 VL/HCC http://dx.doi.org/10.1109/VLHCC.2008.4639084 conf/vl/2008 db/conf/vl/vlhcc2008.html#BeatonJXSM08