It can be used for many purposes, one of which can be to evaluate candidates. When candidates take an assessment, a video camera can record the assessment, allowing the assessor to see exactly where the candidate's performance falls short of specific criteria. This then helps the assessor understand what can be done to improve the candidate's performance for future assessments. An electronic record of the candidate's progress may be kept, which may include periodic review discussions, actual progress against expected progression levels, copies of evidence submitted and a copy of the criteria they are working towards. If held online, it can promote learning away from the usual place of study and help classmates see how well they are doing