ارزیابی بهره وری مدیریت تغییر پیمانکاران ساخت و ساز

This research is targeted at providing a deeper insight into the change orders (CO) in the large building construction projects according to the different parties involved (owner, designer, consultant and contractor) with respect to the Egyptian industrial construction sector. A questionnaire survey discussing all persistent aspects of change order with a selected sample of Egyptian construction contractors companies was conducted in order to have a good representation for all the entities working in the construction industries. The Questionnaire was sent to consultants, designers and others working in the field. Results revealed the main causes, effects and controls of the change orders in large building projects. The study also evaluates the change orders control of a selective sample of contractors and investigates their change management efficiency by applying an evaluation check list based on most of the evaluation criteria recognized.