“…Be an instructor, to lead to effective learning All roles of buyer, user and partners of education - Karapetrovic et al (1999) Customer Operator Wallace (1999) Primary customer Supplier Canic and McCarthy (2000) Primary customer - Chinn and Hilgers (2000) User Instructor as corrector and collaborator Bier and Cornesky (2001) Product in progress and users of the curriculum - Emery et al (2001) Unfinished product/product in progress Customer of the students Clewes (2003) Consumer of higher education -Harvey (2003) Receive services - Politis and Sisko (2004) Customer - Polese and Monetta (2006) Primary client -Total Quality Management 691 contents, timetables, rooms, etc. ); course designer, since he/she is called to design the specific contents and the modalities for delivering lessons, practices and exams; responsible for the educational process, since he/she is called to respond to the results of his/her work (Mergen et al, 2000); course supplier of the course, through the delivering of lessons, practices and exams; assessor of the main output of the course, i.e.…”