User Interface Designs and Effective Service Delivery of Deposit Money Banks in Port Harcourt, Rivers State, Nigeria

Adekunle, S. A., & Taiwo, O. B. (2023). Accessibility challenges in Nigerian digital banking: Implications for elderly and disabled customers. Journal of African Business, 24(3), 412- https://doi.org/10.1080/15228916.2023.2187654 Adewale, A. R., & Yusuf, M. K. (2022). Digital transformation and competitive advantage in Nigerian banking. African Journal of Economic and Management Studies, 13(4), 589- https://doi.org/10.1108/AJEMS-08-2021-0387 Adeyemi, O. S., Ibrahim, M., & Akande, T. (2023). User experience design in African fintech: Contextual considerations and challenges. International Journal of Bank Marketing, 41(6), 1247-1269. https://doi.org/10.1108/IJBM-03-2023-0154 Anderson, E. W., & Mittal, V. (2023). Customer satisfaction and loyalty: Measurement, management, and value creation. Cambridge University Press. Berry, L. L., & Parasuraman, A. (2022). Services marketing: Integrating customer focus across the firm (3rd ed.). McGraw-Hill Education. Cao, J., Zieba, K., & Gregory, K. (2023). Web UI design best practices: The ultimate guide to visual hierarchy. UXPin Publications. Central Bank of Nigeria. (2023). Consumer protection framework: Annual report 2023. CBN Publications. Central Bank of Nigeria Consumer Protection Department. (2023). Analysis of consumer complaints in the Nigerian banking sector. CBN. Chang, D., Dooley, L., & Tuovinen, J. E. (2024). Gestalt theory in visual screen design: A new look at an old subject. Journal of Computer Information Systems, 64(1), 42-58. https://doi.org/10.1080/08874417.2024.2156789 Chen, Y., & Liu, X. (2024). Interface clarity and error prevention in online banking: Evidence from China. Computers in Human Behavior, 152, https://doi.org/10.1016/j.chb.2023.108067 Chibueze, N. P., & Nneka, O. R. (2024). Visual hierarchy in mobile banking applications: An experimental study among Nigerian users. African Journal of Science, Technology, Innovation and Development, 16(2), 234-248. https://doi.org/10.1080/20421338.2024.2198765 Creswell, J. W., & Creswell, J. D. (2023). Research design: Qualitative, quantitative, and mixed methods approaches (6th ed.). SAGE Publications. Davis, F. D. (1989). Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS Quarterly, 13(3), 319-340. https://doi.org/10.2307/249008 Eze, U. C., & Chinedu, A. D. (2023). Digital banking adoption among young Nigerians: The role of user interface design. Journal of Internet Banking and Commerce, 28(2), 1-22. Flavián, C., Guinalíu, M., & Lu, Y. (2022). Mobile payments adoption: A comprehensive model integrating user interface design. International Journal of Bank Marketing, 40(5), 1042- https://doi.org/10.1108/IJBM-07-2021-0345 Frain, B. (2022). Responsive web design with HTML5 and CSS (4th ed.). Packt Publishing. Galitz, W. O. (2022). The essential guide to user interface design: An introduction to GUI design principles and techniques (4th ed.). Wiley. Gardner, B. S. (2023). Responsive design: Creating seamless cross-device experiences. A Book Apart. Hassan, M. U., Iqbal, Z., & Malik, A. (2023). Mobile banking interface design and user satisfaction: A multi-country study. Electronic Commerce Research, 23(3), 1687-1715. https://doi.org/10.1007/s10660-023-09654-2 Henry, S. L., & Arch, A. (2024). Web accessibility: Practical advice for the real world (2nd ed.). New Riders. Ibrahim, K., & Mohammed, S. (2024). Navigation challenges in Ethiopian digital banking: Implications for financial inclusion. African Journal of Information and Communication, 29, 87-106. https://doi.org/10.23962/10539/37845 Kotler, P., & Keller, K. L. (2023). Marketing management (16th ed.). Pearson. Lidwell, W., Holden, K., & Butler, J. (2023). Universal principles of design (3rd ed.). Rockport Publishers. Lovelock, C., & Wirtz, J. (2024). Services marketing: People, technology, strategy (9th ed.). World Scientific. Maranguni?, N., & Grani?, A. (2024). Technology acceptance model: A literature review from 2008 to 2023. Universal Access in the Information Society, 23(1), 1-32. https://doi.org/10.1007/s10209-023-01078-x Mugenda, O. M., & Mugenda, A. G. (2003). Research methods: Quantitative and qualitative approaches. Acts Press. Newell, A. F., & Gregor, P. (2022). Design for older and disabled people: Where do we go from here? Universal Access in the Information Society, 21(4), 873-886. https://doi.org/10.1007/s10209-021-00845-w Nielsen, J., & Budiu, R. (2023). Mobile usability (2nd ed.). New Riders. Nigeria Inter-Bank Settlement System. (2024). Annual report on electronic payment channels in Nigeria. NIBSS Publications. Norman, D. A. (2023). The design of everyday things: Revised and expanded edition (3rd ed.). Basic Books. Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory (3rd ed.). McGraw-Hill. Nwankwo, C. A., & Chukwu, B. I. (2024). Port Harcourt as a banking hub: Dynamics and determinants. Journal of African Economies, 33(2), 245-268. https://doi.org/10.1093/jae/ejad034 Ojo, A. O., Raman, M., & Downe, A. G. (2023). Determinants of e-banking continuous usage in Nigeria: The moderating role of user demographics. International Journal of Electronic Banking, 4(1), 67-89. https://doi.org/10.1504/IJEB.2023.128976 Okafor, G. C., & Ugwu, E. C. (2024). Competitive intensity and technology adoption in Nigerian banking. Journal of Financial Services Research, 65(1), 89-112. https://doi.org/10.1007/s10693-023-00423-5 Okeke, T. C., Ezeh, P. C., & Nnamdi, K. C. (2023). Omnichannel banking experiences in Nigeria: Challenges and opportunities. International Journal of Retail & Distribution Management, 51(8), 1024-1043. https://doi.org/10.1108/IJRDM-02-2023-0098 Okonkwo, I. E., Obi, C. O., & Nnadi, C. S. (2023). ATM interface design and user experience in Lagos, Nigeria. Journal of Systems and Information Technology, 25(3), 287-305. https://doi.org/10.1108/JSIT-09-2022-0198 Parasuraman, A., Zeithaml, V. A., & Malhotra, A. (2024). E-S-QUAL: A multiple-item scale for assessing electronic service quality. Journal of Service Research, 26(4), 498-519. https://doi.org/10.1177/10946705231205678 Pepple, D. G., & Onyeche, V. C. (2024). Cultural factors influencing technology acceptance in Port Harcourt. African Journal of Business Management, 18(3), 87-102. https://doi.org/10.5897/AJBM2023.9487 Persson, H., Åhman, H., Yngling, A. A., & Gulliksen, J. (2024). Universal design, inclusive design, accessible design, design for all: Different concepts—one goal? On the concept of accessibility. Universal Access in the Information Society, 23(2), 453-469. https://doi.org/10.1007/s10209-023-00987-z Pirolli, P. (2023). Information foraging theory: Adaptive interaction with information. Oxford University Press. Preece, J., Sharp, H., & Rogers, Y. (2023). Interaction design: Beyond human-computer interaction (6th ed.). Wiley. Rosenfeld, L., Morville, P., & Arango, J. (2022). Information architecture: For the web and beyond (5th ed.). O'Reilly Media. Sanusi, L. M., & Aminu, M. B. (2023). Digital literacy and financial inclusion in Northern Nigeria. Journal of Financial Literacy and Wellbeing, 1(1), 45-67. https://doi.org/10.1017/flw.2023.5 Souders, S. (2023). High performance web sites: Essential knowledge for front-end engineers (2nd ed.). O'Reilly Media. Sweller, J., & Chandler, P. (2021). Cognitive load theory: Methods to manage working memory load in the learning of complex tasks. Current Directions in Psychological Science, 30(1), 56-62. https://doi.org/10.1177/0963721420968796 Tidwell, J., Brewer, C., & Valencia, A. (2020). Designing interfaces: Patterns for effective interaction design (3rd ed.). O'Reilly Media. Venkatesh, V., & Davis, F. D. (20