The document outlines the Gaps Model of Service Quality which identifies five gaps that can lead to dissatisfied customers. The first is the Customer Gap which is the difference between a customer's expectations and perceptions of a service. The other four gaps occur within organizations and are: the listening gap between perceived and expected customer expectations; the design gap between customer expectations and service standards; the performance gap between standards and actual service delivery; and the communication gap between promised and delivered services. Closing these gaps is important to meet customer expectations.