This paper describes an educational experiment that took place at the
Heriot-Walt University in Edinburgh during the Autumn Term 1994. As pa
rt of the Mathwise Project, 40% of the mathematics assessment for the
students' first year has been undertaken by a computer program. The co
mputer set and marked a class of 82 students as they took part in thei
r final assessment in Mathematics sitting at the computer keyboard. Th
is paper explains the process adopted to ensure the smooth delivery of
this novel technical event and highlights the educational issues rais
ed by using the computer to help teachers with assessment. Aspects of
security, human-computer interface and educational matters such as par
tial credit are all discussed. Some implications for the future comple
te this account.