Human–Computer Interaction & Interface Design

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Abstractions about designing and evaluating interfaces around users, tasks, actions, embodiment, and context. They cover interaction models, input and pointing methods, accessibility, prototyping, usability measurement, adaptive interfaces, design systems, and manipulative dark patterns.

24 abstractions in this family — domain-specific abstractions that sit near one another in structural-signature space (k-means over structural-signature embeddings). Each is shown with its short description.

• Activity-centered design — An interaction-design approach that organizes a product around the coherent activity users must accomplish rather than around isolated preferences or interface features.
• Confederate effect — The misclassification of a human interlocutor as a machine during a Turing-test-style comparison.
• Context-sensitive user interface — Adapt available commands, presentation, or feedback to the application state, current object, user selection, mode, or task context.
• Crossing-based interface — A graphical interface in which moving a pointer across a target boundary triggers an action.
• Dark pattern — A deliberately deceptive interface design that steers users toward choices they would not otherwise make by obscuring, manipulating or asymmetrically presenting options.
• Design system — A governed collection of reusable interface components, design tokens, standards, and documentation that coordinates consistent digital-product design and implementation.
• Emotion-sensitive software — Software designed to infer, respond to or adapt around a user’s affective state from behavioral or physiological signals.
• Frame (GUI) — A labeled visual container that groups related interface controls so their common scope or function is perceptually explicit.
• GOMS — A human–computer interaction modeling family representing skilled task performance through goals, operators, methods and selection rules.
• Human action cycle — A seven-stage human-computer interaction model linking goal formation, intention and action specification, execution, perception, interpretation and evaluation across the gulfs of execution and evaluation.
• Input method — Software that converts available keystrokes, gestures or composition sequences into characters and symbols not directly present on an input device.
• Natural user interface — A user-interface design approach making interaction feel direct and progressively learnable through familiar actions, perception and immediate feedback.
• Paper prototyping — A low-fidelity interface-design method in which hand-made screens and a human-simulated interaction expose usability problems before implementation.
• Pointing device — A human-interface device that maps physical movement or position into continuous multidimensional coordinates for controlling an on-screen pointer or spatial target.
• Switch access scanning — An indirect assistive selection method that presents choices in a predictable sequence or grouping and lets a user activate one or more switches when the desired item is highlighted or announced.
• System usability scale — A ten-item alternating-valence questionnaire yielding a standardized global score of perceived system usability.
• Task-focused interface — A user interface that makes the current task and its dynamically inferred context the primary unit of interaction, filtering or emphasizing artifacts according to task relevance.
• Usage-centered design — A user-interface design method that models user roles and essential task cases before deriving interaction structure and visual presentation.
• User analysis — A systems-design investigation that characterizes intended users, their goals, capabilities, contexts and workflows to constrain product and documentation decisions.
• User interface design — The design of perceptible controls, information and interaction behavior through which people operate a system.
• User interface plasticity — The capacity of a user interface to adapt across devices and environments while preserving its intended usability and task support.
• User modeling — The construction and updating of an internal representation of a user’s goals, knowledge, preferences, abilities or context to support system adaptation.
• Virtual body — A digitally mediated embodiment through which a person is represented, perceived and able to act in a virtual environment.
• Visual Interactive Voice Response — A contact-center self-service interface that exposes an IVR journey as synchronized visual menus and touch or click interactions on a web-capable device.