According to the Quality Assurance Agency [QAA (2006). Section 6: Assessment of students, Code of practice for the assurance of academic quality and standards in higher education. <http://www.qaa.ac.uk/>. Accessed 14.03.2007] “Assessment describes any processes that appraise an individual’s knowledge, understanding, abilities or skills” and is inextricably linked to a course or programme’s intended learning outcomes. Assessment also has a fundamental effect on students’ learning where it serves a variety of purposes including evaluation, feedback and motivation. Assessment also provides a performance indicator for both students and staff. Computer-aided assessment (CAA) offers an option for “sustainable assessment” and provides opportunities for creating innovative assessment practices that help engage students and increase their motivation for learning. This paper reports the findings of a qualitative study where a series of on-line summative assessments were introduced into a first-year financial accounting course. Feedback from students obtained from an evaluative survey and focus group interviews indicates that assessment played a significant role in the teaching/learning process. That is, students perceived a beneficial impact on learning, motivation, and engagement.