In recent years, many companies around the world have adopted different forms of quality systems, such as ISO-based quality systems, or BS-based quality systems. A quality-based company provides higher quality services and products in comparison with non quality-based companies. As a result, quality-based companies have become reputable and attract more customers. In projects construction field, quality has become very essential for both contractors and owners. Contractors tend to provide high quality deliverables to satisfy their clients, and to remain successful in this turbulent business field, while owners want to receive high quality end-products and services, and to ensure that their deliverables matching contractual quality requirements. In this study, an attempt to build a QMS in a 60% completed project was made, and the effectiveness of the QMS has been measured by applying a Matrix Model. This study is a good review for project management practitioners and project engineers, as well as project managers, it highlights an attempt to design,implement, and evaluate a QMS within the owner side in a period of three months,the study results will be used to design future projects