One way to perform surgical quality assessment (SQA) in an objective way is to analyze the unedited video footage from the surgery in accordance to some standardized rating scheme. The Generic Error Rating Tool (GERT)  is such an objective measure which defines four error modes (e.g., too much or too little use of force/distance) and nine generic surgical tasks (e.g., grasping and dissection, suturing, use of suction) that are prone to these errors. Currently, the medical expert who performs this analysis uses a common video player (with simple play, pause, fast-forward, and reverse controls) and manually fills in a form, either on paper or electronically. Besides the classification of the error according to its task group and error mode, the assessor has to write down the video timestamp of its occurrence and optionally further information such as free text notes. However, this is a tedious and error prone task. Due to its cumbersome nature, SQA is not widely used nowadays.