A diagram drawing tool for semi–automatic assessment of conceptual database diagrams

The increased number of diagram based questions in higher education has recently attracted researchers to look into marking diagrams automatically. Student diagrammatic solutions are naturally very dissimilar to each others. However, it has been observed that there are a number of identical diagram components. This observation forms the basis of our semi–automatic assessment. Identifying identical diagram components in student diagrams needs contextual information about each component. This paper proposes a diagram tool which obtains the contextual information of each component in a conceptual database diagram.