Citation :

Davit Sanpote, "The User Interface and Experience Design Factors for One Stop Service System: A Case Study of Chiangmuan Municipal, Phayao," International Journal of Engineering Trends and Technology (IJETT), vol. 74, no. 9, pp. 480-490, 2026. Crossref, https://doi.org/10.14445/22315381/IJETT-V74I9P133

Abstract

The transition of local government services from paper-based procedures to digital platforms remains uneven in small and medium-sized municipalities across Thailand, where limited technical capacity and weak design discipline often produce systems with low adoption. This study examines the User Interface (UI) and User Experience (UX) design factors that determine the usability of a One Stop Service (OSS) platform deployed at Chiangmuan Municipality, Phayao Province. Two iterations of the system were evaluated under a Design Thinking framework, with Jakob Nielsen's ten usability heuristics serving as the diagnostic instrument. A structured questionnaire was administered to ten municipal officers for version 1.0 after twelve months of operational use, and to a second group of ten officers after the redesigned version 2.0 had been deployed for six months. Open-ended responses were used to triangulate the quantitative scores, and a Chi-Square test of independence was applied to evaluate whether the redesign produced a statistically significant change in satisfaction. Three heuristics were identified as the principal weak points of the initial release: match between the system and the real world, user control and freedom, and consistency and standards. After the redesign, these factors recorded mean score increases of 35 to 45 points on a ten-officer scale, and the Chi-Square statistic of 1.666 with one degree of freedom supported the alternative hypothesis at the 0.05 significance level for the one-tail test. Unlike prior heuristic studies on government portals, which treat the inspection as a single diagnostic snapshot and report descriptive frequencies only, this work applies the heuristics iteratively across two production releases and attaches an inferential test to the satisfaction shift. The findings indicate that targeted heuristic-driven redesign produces measurable improvements in officer satisfaction and reduces operational error in a real sub-district municipal setting.

Keywords

One Stop Service (OSS), Design thinking, User Experience (UX), User Interface (UI), Chi-Square test, Usability Heuristics, E-Government, Local administrative organization.

References

[1] Wilbert O. Galitz, The Essential Guide to User Interface Design, An Introduction to GUI Design Principles and Techniques, John Wiley and Sons, vol. 29, no. 4, 1997.
[Google Scholar] [Publisher Link] 

[2] Ananda Mohon Ghosh, Debashish Halder, and S.K. Alamgir Hossain, “Remote Health Monitoring System through IoT,” 2016 5^th International Conference on Informatics, Electronics and Vision (ICIEV), Dhaka, Bangladesh, pp. 921-926, 2016.
[CrossRef] [Google Scholar] [Publisher Link]

[3] Sampada Kembhavi, Ravindra Gupta, and Gajendra Singh, “An Efficient Algorithm for Auto Upload and Chi-Square Test on Application Software,” International Journal of Advanced Computer Research, vol. 3, no. 10, pp. 121-125, 2013.
[Google Scholar] [Publisher Link]

[4] Howard Lei et al., “A Statistical Analysis of the Effects of Scrum and Kanban on Software Development Projects,” Robotics and Computer-Integrated Manufacturing, vol. 43, pp. 59-67, 2017.
[CrossRef] [Google Scholar] [Publisher Link]

[5] Afifa Lodhi, “Usability Heuristics as an Assessment Parameter: For Performing Usability Testing,” 2010 2^nd International Conference on Software Technology and Engineering, San Juan, PR, USA, pp. V2-256-V2-259, 2010.
[CrossRef] [Google Scholar] [Publisher Link]

[6] Anand P. Mankodia, and Satish K. Shah, “Design of User Interface for Shot Boundary Detection using Classical Methods,” International Journal of Innovative Research in Electrical, Electronics, Instrumentation and control Engineering, vol. 1, no. 7, pp. 287-293, 2013.
[Google Scholar] [Publisher Link]

[7] Jakob Nielsen, “Enhancing the Explanatory Power of Usability Heuristics,” Proceedings of the SIGCHI conference on Human Factors in Computing Systems, pp. 152-158, 1994.
[Google Scholar] 

[8] Freddy Paz, and Jose Antonio Pow-Sang, “A Systematic Mapping Review of Usability Evaluation Methods for Software Development Process,” International Journal of Software Engineering and its Applications, vol. 10, no. 1, pp. 165-178, 2016.
[Google Scholar] [Publisher Link]

[9] Daniela Quiñones, Cristian Rusu, and Virginica Rusu, “A Methodology to Develop Usability/user Experience Heuristics,” Computer Standards and Interfaces, vol. 59, pp. 109-129, 2018.
[CrossRef] [Google Scholar] [Publisher Link]  

[10] Wei-siong Tan, Dahai Liu, and Ram Bishu, “Web Evaluation: Heuristic Evaluation vs. user Testing,” International Journal of Industrial Ergonomics, vol. 39, no. 4, pp. 621-627, 2009.
[CrossRef] [Google Scholar] [Publisher Link]   

[11] Thankam Paul Thyvalikakath et al., “Comparative Study of Heuristic Evaluation and Usability Testing Methods,” Studies in Health Technology and Informatics, vol. 143, pp. 322-327, 2009.
[Google Scholar] [Publisher Link]    

[12] Enlie Wang, and Barrett Caldwell, “An Empirical Study of Usability Testing: Heuristic Evaluation vs. User Testing,” Proceedings of the Human Factors and Ergonomics Society Annual Meeting, vol. 46, no. 8, pp. 774-778, 2002.
[CrossRef] [Google Scholar] [Publisher Link]    

[13] Yang Xu et al., “AI-Driven UX/UI Design: Empirical Research and Applications in FinTech,” Academia Nexus Journal, vol. 3, no. 1, pp. 1-28, 2024.
[Google Scholar] [Publisher Link]     

[14] Noptanit Chotisarn et al., “Usability Heuristic Evaluation for Phayao Province E-Government Portal, Thailand,” NU International Journal of Science, vol. 13, no. 1, pp. 8-16, 2016.
[Google Scholar]  

[15] Fillip Molodtsov, and Anastasija Nikiforova, “An Integrated Usability Framework for Evaluating Open Government Data Portals: Comparative Analysis of EU and GCC Countries,” Proceedings of the 25^th Annual International Conference on Digital Government Research, Association for Computing Machinery, New York, United States, pp. 899-908, 2024.
[CrossRef] [Google Scholar] [Publisher Link]

[16] Stefanie Di Russo, “Design and Taxes: A Case Study on Design Thinking in the Australian Taxation Office,” Proceedings of IASDR Interplay, Brisbane, Australia, 2015.
[Google Scholar]