Friday, December 05, 2003
Research Design
Testing the Usability of Visual Languages: A Web-Based Methodology:
"Among the possible evaluation methods (Preece 1993), we elicited observational evaluation, which involves observing or monitoring users' behavior while they are using an interface, and survey evaluation, which means seeking users' subjective opinions. To collect data about what users do when they interact with the test interface, employment of direct observation was avoided. In fact, if users are constantly aware that their performance is being monitored, their behavior may be strongly influenced (Hawthorne effect). Instead, we used software logging to record the dialog between user and system. In particular, our methodology is based on the use of the log files of a Web server, as will be illustrated. Moreover, we elicited questionnaire forms to support the survey evaluation. "
"Among the possible evaluation methods (Preece 1993), we elicited observational evaluation, which involves observing or monitoring users' behavior while they are using an interface, and survey evaluation, which means seeking users' subjective opinions. To collect data about what users do when they interact with the test interface, employment of direct observation was avoided. In fact, if users are constantly aware that their performance is being monitored, their behavior may be strongly influenced (Hawthorne effect). Instead, we used software logging to record the dialog between user and system. In particular, our methodology is based on the use of the log files of a Web server, as will be illustrated. Moreover, we elicited questionnaire forms to support the survey evaluation. "
# posted by Yik Sheng : 9:01 PM
