A Continuous Improvement Approach for Outsourced After-Sales Field Repair Services Contracting Aly Owida (B.Sc., M.Sc.) This thesis is submitted in accordance with the requirements of the University of Limerick for the degree of Doctorate of Philosophy in Engineering. Supervisors: Prof. Cathal Heavey, Prof. PJ Byrne, and Prof. Khaled S. El-Kilany Submitted to the University of Limerick, May 2018