Development of a Quantitative and Comprehensive Usability Evaluation System Based on User Needs

Abstract

The development of a user-centered product design is important to satisfy customers who want to use a product with ease of use and to keep the manufacturer competitive in the market. The present study developed a system to analyze and evaluate the usability of a product in a systematic and comprehensive manner based on user needs. The usability system was developed through five phases (product-user interface analysis, user needs collection, user-needs hierarchy development, user-needs importance survey, and usability evaluation system development) including various analysis topics in each phase. The system developed through the five-phase process was effectively applied to usability evaluation on refrigerator. The developed usability evaluation system would contribute to developing user-centered designs by providing comprehensive information on the usability of a product.

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