In its broad purpose, assessment aims at discovering learner’s potential. We believe that every learners has the right to succeed according to his/her abilities meeting the twenty-first century skills such as: creativity, critical thinking and problem solving. This is major principle that precedes and guides any decision making process relevant to the learner’s being promoted. Accordingly, assessment is a process that contributes to revealing the level of every learner’s learning in order to maintain and promote his/her strengths and enhance points of improvement.