This unit mainly discuss about databases and visualisations. The concepts being taught in the class are SQL, R, and Tableau. The difficulty level is medium. The assignments were quite well, and I recommend using Tableau instead of R for the visualisation tasks. Exam was not too difficult. Elias, the unit convenor, is nice and helpful, but it seems that one of the tutor not mastering the content well. This unit is recommended to take as final unit in BUSA.