Definition

Parasuraman, Zeithaml & Berry (1988) developed the SERVQUAL model — measuring service quality based on five dimensions: Reliability, Assurance, Tangibles, Empathy, and Responsiveness (RATER).

Introduction

Unlike products, service quality is judged by what customers feel. SERVQUAL quantifies that feeling into measurable dimensions.

Explanation

The 5 Dimensions (RATER):

Reliability – delivering on promises.

Assurance – inspiring trust and confidence.

Tangibles – physical cues (clean facilities, staff appearance).

Empathy – personalized care.

Responsiveness – prompt service.

Key Takeaways

Service quality gaps create dissatisfaction.

Continuous feedback maintains high scores.

RATER helps identify training and process needs.

Real-World Case

Ritz-Carlton Hotels empower employees to resolve customer issues immediately, achieving world-class service reliability and empathy.
Reference: https://www.ritzcarlton.com