The portfolio markers are practising teachers with at least five years of experience in the same teaching area and level as the teacher being evaluated. They examine the evidence provided by teachers and assign the performance ratings for the different dimensions evaluated by the portfolio. Portfolio markers receive proper training for their function by the Docentemas team and benefit from a detailed set of assessment rubrics describing the meaning of Unsatisfactory, Basic, Competent and Outstanding performance across the different elements analysed by the portfolio.