User Experience/User Interface

User Experience (UX) refers to a person's perceptions and responses resulting from the use or anticipated use of a product, system, or service. User Interface (UI) is the means by which the user and a system interact. The international standard ISO 9241-210:2019 (Human-centred design for interactive systems) provides the framework for UX/UI design. In risk management, particularly for automotive functional safety (ISO 26262) and cybersecurity (ISO/SAE 21434), a poorly designed UX/UI is a significant risk factor. For instance, a confusing interface for a security update could lead users to ignore it, creating a vulnerability. Similarly, a distracting infotainment system can become a safety hazard. Therefore, UX/UI is not merely about aesthetics but is a critical engineering discipline directly tied to system safety, security, and compliance.

Applying UX/UI in risk management involves a structured process. Step 1: Risk Context Definition. Based on ISO 9241-210, analyze users, tasks, and environments, and integrate this with a Threat Analysis and Risk Assessment (TARA) to identify hazards stemming from poor Human-Machine Interaction (HMI). Step 2: Human-Centered Design and Iteration. Develop prototypes and conduct usability testing, measuring performance against ISO 9241-11 metrics like task success rate, error rate, and satisfaction (e.g., System Usability Scale). For example, an automaker used eye-tracking to prove a new HMI design reduced driver distraction by 15%. Step 3: Integrated Safety Validation. Incorporate HMI validation into the overall ISO 26262 and ISO/SAE 21434 verification and validation plan, ensuring human-factor risks are mitigated to an acceptable level with full traceability for audits.

Taiwanese enterprises face three key challenges in implementing risk-driven UX/UI. First, organizational silos: UX/UI is often treated as a late-stage beautification task, disconnected from core safety engineering processes like ISO 26262. Second, a lack of resources for quantitative analysis: many SMEs lack dedicated human factors experts and expensive equipment like driving simulators for objective workload assessment. Third, supply chain inconsistency: HMIs composed of modules from various suppliers often lack a unified design language, increasing the driver's cognitive load and operational risk. To overcome this, firms should establish cross-functional teams within 90 days to integrate HMI requirements into system specifications, adopt lightweight remote testing tools for quantitative feedback, and enforce a mandatory HMI design guideline for all suppliers.

Winners Consulting specializes in User Experience/User Interface for Taiwan enterprises, delivering compliant management systems within 90 days. Free consultation: https://winners.com.tw/contact