TY - BOOK AU - Barnum,Carol M. TI - Usability testing essentials: ready, set-- test SN - 9780123750921 PY - 2011/// CY - Burlington, MA. PB - Morgan Kaufmann Pub. KW - User interfaces (Computer systems) KW - Testing KW - Web-based user interfaces KW - Human KW - Computer interaction N1 - Includes bibliographical references and index ER -