Today it is clear that in order to preserve customers and obtain competitive advantage, improving service quality plays a key and vital role in organizational survivor (Alvani and Riahi, 2004). Comprehensive quality is in fact a cultural issue which changes into a practical tool. It means at first the idea of comprehensive quality must reside in employees’ minds and then such mental conception changes into operational activities as a tool for increasing organizational quality (Soltani and Poorsina, 2007).