Definition

Developed by Parasuraman, Zeithaml & Berry (1988), SERVQUAL measures perceived service quality through five dimensions — Reliability, Responsiveness, Assurance, Empathy, and Tangibles (RRAET).
It quantifies the gap between expectations (E) and perceptions (P): Q = P – E.

Introduction

SERVQUAL transformed a vague idea into a measurable construct.
By surveying customers on each dimension, managers can locate weaknesses and allocate resources scientifically.

Explanation
Dimension Meaning Example
Reliability Ability to perform dependably Flights depart on time
Responsiveness Willingness to help promptly Call center resolves fast
Assurance Confidence & courtesy Banker explains clearly
Empathy Individual care Nurse remembers patient history
Tangibles Physical cues Clean lobby, modern tools

Scores across dimensions highlight where perception < expectation. Regular SERVQUAL audits enable continuous benchmarking across branches or markets. Key Takeaways Converts qualitative feelings into measurable data. Five dimensions capture both function and emotion. Continuous SERVQUAL tracking builds accountability. Real-World Case : ICICI Bank ICICI applies SERVQUAL quarterly to branch audits, ranking outlets on reliability and responsiveness; results feed training plans. Reference: https://www.icicibank.com