Intelligent DSS for Developing the Optimum Schedule for Repetitive Construction Projects: A Thesis Submitted to the Faculty of Engineering Cairo University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Civile Engineering (Structural) / By Hani Saddik Naja; Supervised by Moheeb El-Said Ibrahim, Mahmoud Abd El-Salam Taha. Naja, Hani Saddik.