Industrial & System Engineering Journals (ISEJOU)
Vol. 5 No. 1 (2026): ISEJOU, Vol 5, No 1 Desember 2026

Implementation of SERVQUAL and QFD to Measure Service Quality at Cafe Pastor Ngagel Surabaya

Benediktus Triwibowo Basuki (Universitas Katolik Darma Cendika)
Lilis Nurhayati (Universitas Katolik Darma Cendika)
David Andrian (Universitas Katolik Darma Cendika)



Article Info

Publish Date
26 Aug 2026

Abstract

This study addresses delayed order preparation and frequent order errors at Cafe Pastor Ngagel Surabaya. Using responses from 102 customers, service quality was assessed across 25 attributes through the SERVQUAL method. Thirteen attributes showed positive gaps, including staff friendliness, while two had zero gaps, indicating aspects of service that met customer expectations and should be maintained. Ten attributes showed negative gaps, with the largest relating to inadequate modern equipment (−0.559), interior design (−0.451), and inconsistent coffee taste (−0.324). These negatively rated attributes were incorporated into a House of Quality (HoQ) matrix using Quality Function Deployment (QFD). The three highest-ranked improvements were standardizing coffee preparation time (priority score: 271.86), calibrating coffee flavor (212.62), and modernizing equipment (198.23). These priorities can help café management allocate resources more effectively to improve service speed and product consistency.

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Journal Info

Abbrev

isejou

Publisher

Subject

Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

Description

Industrial & System Engineering Journals (ISEJOU) focused to: Engineering Management, Supply Chain Management, Ergonomics and Human Factors, Work Design and Measurement, Operations Research and Analysis, Engineering Economic Analysis, Facilities Engineering and Energy Management, Quality and ...