TY - BOOK AU - Barnum,Carol M. TI - Usability Testing Essentials: Ready, Set-- Test SN - 9780123750921 AV - QA76.9.U83 B3634 2011 U1 - 004.01/9 22 PY - 2011/// CY - Burlington, MA PB - Morgan Kaufmann Publishers KW - User interfaces (Computer systems) KW - Testing KW - Web-based user interfaces KW - Human-computer interaction ER -