Human-Computer Interaction (HCI) seeks to integrate, apply and develop social-cognitive theory and a systematic design framework for creating and evaluating interactive systems. HCI researchers study specific fields of practice/work domains, design advanced user interfaces, develop collaborative technologies (e.g., for real-time collaboration over networks), and assess/evaluate system usefulness/usability. They study and improve the cognitive, affective, and organizational processes of technology development (e.g., task analysis, design rationale).

HCI tools and methods for user-centered design are directed at diverse applications from entertainment, education, and work, and at diverse user populations including the elderly, the young, and the disabled. In turn, researchers integrate and evaluate new applications of technology in varied forms of human activities (e.g., distance learning, data visualization in virtual environments). HCI research increases the chance that new information technology can actually be used and enjoyed by people for real purposes. HCI researchers are user advocates first and technology advocates second.