Human Computer Interaction Metrics in Software Development Life Cycle Phases for Usability Centered Design
Keywords:
Human-Computer Interaction (HCI), Usability Metrics, Software Development Life Cycle (SDLC), Usability-Centered Design, User Experience (UX), Interaction Evaluation, Cognitive Load, Task PerformanceAbstract
Human-Computer Interaction (HCI) plays a pivotal role in ensuring that software systems are designed with usability, efficiency, and user satisfaction at their core. Integrating HCI metrics across the Software Development Life Cycle (SDLC) enhances usability-centered design by systematically evaluating user needs, interface efficiency, and interaction quality at each phase. This study explores the mapping of HCI metrics—such as task completion rate, error rate, cognitive load, and satisfaction indices—across SDLC phases (requirements, design, implementation, testing, and maintenance). We synthesize key usability metrics and propose an architecture for embedding them into SDLC workflows. Visualizations including mind maps, sequence diagrams, and charts demonstrate how HCI metrics support decision-making, reduce development costs, and improve overall user experience.
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