The education of students is becoming increasingly results-driven and as a result attention is focused on the quality of teachers and how they perform in teaching students. It seems that many stakeholders want to measure or appraise the quality of teaching which occurs in schools. According to Burnett and Meacham,

[the stakeholders] range from governments who are keen to dispel beliefs concerning the decline in the quality of public instruction, school administrators wishing to derive maximum benefit from their staffing dollar, professional teaching bodies looking to enhance the professional status of their members, individual teachers desiring job security and promotion on merit, and parents wanting the best for their children, to the children themselves.