Academic research information service is a must for surveying relevant studies in research and development activities. However, in-depth usability evaluation studies about the service are not enough when compared with its importance. This study emphasizes needs of the evaluation in a way that introduces the case of OntoFrame improved by repeated usability evaluations. We perform two different kinds of usability evaluations; first is for confirming service objectives through FGI (Focus Group Interview), second is for verifying service usefulness through FGI and usability test. Many usability problems were found and solved in the next version indebted with the evaluations.