Abstract
Educational institutions currently favor the adoption and use of modern information and communication technology for teaching and learning. As a result, many learning management systems have been developed over recent years and established in education systems. This paper reports the results of a study that examines the usability level of the Blackboard system from the perspectives of the academic members of Umm Al-Qura University in Saudi Arabia by using two of the most commonly used measures of perceived usability, namely, SUS and CSUQ. It also examines the association between these measures, and the effect of faculty demographics attributes on their scores. The results of the study revealed that the usability of Blackboard at the current institution is inadequate and needs to be further enhanced. It also showed that SUS and CSUQ questionnaires correlated highly and largely appear to be measuring the same thing, presumably, perceived usability. The results also indicated the significant effect of Blackboard frequency of use on both SUS and CSUQ scores.