Alizadeh, Shahab creator Batanov, Dentcho N. Chairperson Haddawy, Peter Examination Committee Sumanta, Guha Examination Committee Asian Institute of Technology Fellowship Scholarship Donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2003 continuing eng 92 p. Usability concept has become the hot topic and the critical aspects of many online applications. Many web-based application with great functionality has failed just because of ignoring the term of usability. Usability has many aspects but for web based application mainly is focused on GUI and functionalities. This study a methodology of usability pattern to give the designer the first needed steps in reaching to better GUI has been presented. Numbers of usability functions based on the framework technology are build in order to be integrated with the Question and Answer model by the same time keeping the concept of object- oriented terminology of the system. Object-oriented software development life cycle is been applied for analysis and design of the application. Finally implemented functions are applied in the Q&A system for representing their functionalities and tasks. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science,School of Advanced Technologies Thesis (M.Sc.) - Asian Institute of Technology, 2003 Web site development Graphical user interfaces (Computer systems) Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B08340 http://203.159.5.9/ait-thesis/detail.php?q=B08340 040806 20260818090942.0