1. The document discusses the gaps model of service quality which identifies four key gaps that can occur within companies and lead to a gap between customer expectations and perceptions. 2. The four gaps are: a knowledge gap where the company does not understand customer expectations, a service design gap where standards do not match expectations, a service performance gap where delivery does not meet standards, and a communication gap where promises do not match performance. 3. The model provides a framework for understanding service quality issues and identifies factors that can contribute to each of the four internal gaps. Addressing these gaps is important for improving customer perceptions of service.