Essential objective and subjective criteria for evaluating a design

Design evaluation involves a complex interplay between objective and subjective criteria, both crucial for creating effective and resonant designs. Objective criteria provide a structured framework for evaluating usability, accessibility, and adherence to standards, drawing on anthropometry, heuristics, and norms like ISO 9241, which focus on the physical and functional aspects of design. However, design excellence also requires consideration of subjective elements, such as personal preferences, emotions, cultural influences, and context, which shape user perception and experience. While objective measures offer tangible benchmarks, subjective criteria often involve nuanced interpretations related to psychology and cultural associations, highlighting the importance of balancing both to achieve designs that are functional and emotionally engaging. The context in which a design is used significantly impacts its effectiveness, necessitating ongoing research and adaptation to meet the evolving needs and expectations of users. Understanding the true task and user context is essential for a comprehensive evaluation, emphasizing the need for a holistic approach that integrates both measurable standards and human-centric insights.