Evaluation and Design of UI/UX in Purchasing ERP Module for Usability Optimization Using Heuristic Evaluation, User-Centered Design, and System Usability Scale

Abstract

Cloud-based enterprise resource planning (ERP) information systems are integrated solutions that are relied on to manage company resources from various parts. One factor that influences ERP's success is the integration of the interface, namely UI/UX. One method used in usability evaluation is heuristic evaluation (HE), user-centered design (UCD) and SUS. Based on the evaluation that has been carried out, there are 74 problem findings from three evaluators. The problems consist of nine problems in the H1 Visibility of System status category, nine problems in the H3 User Control and Freedom category, sixteen problems in the H4 Consistency and Standard category, five problems in the H5 Error prevention category, two problems in the H6 Recognition rather than recall category, seven problems in the H7 Flexibility and Efficiency of Use category, four problems in the H8 Aesthetic and minimalist design category, twenty four problems in the H9 Help user Recognize, Diagnose, and Recover from Error category, and one problem in the H10 Help and Documentation category. In addition, the SUS value obtained was 60, which was in the D grade scale range; the adjective rating was OK and had a Marginal acceptability range. The usability problems found by the evaluators have been optimized to improve usability, so only 15 problems remained after the improvements were made. The results of the second stage SUS score also showed an increase with a score of 81.6, and there was an increase in usability acceptance from the Marginal acceptability range to Acceptable.