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Concept
Interaction design pattern
Summary
Interaction design patterns are design patterns applied in the context human-computer interaction, describing common designs for graphical user interfaces.
A design pattern is a formal way of documenting a solution to a common design problem. The idea was introduced by the architect Christopher Alexander for use in urban planning and building architecture and has been adapted for various other disciplines, including teaching and pedagogy, development organization and process, and software architecture and design.
Thus, interaction design patterns are a way to describe solutions to common usability or accessibility problems in a specific context. They document interaction models that make it easier for users to understand an interface and accomplish their tasks.
Patterns originated as an architectural concept by Christopher Alexander. Patterns are ways to describe best practices, explain good designs, and capture experience so that other people can reuse these solutions.
Design patterns in computer science are used by software engineers during the actual design process and when communicating designs to others. Design patterns gained popularity in computer science after the book Design Patterns: Elements of Reusable Object-Oriented Software was published. Since then a pattern community has emerged that specifies patterns for problem domains including architectural styles and object-oriented frameworks. The Pattern Languages of Programming Conference (annual, 1994—) proceedings includes many examples of domain-specific patterns.
Applying a pattern language approach to interaction design was first suggested in Norman and Draper's book User Centered System Design (1986). The Apple Computer's Macintosh Human Interface Guidelines also quotes Christopher Alexander's works in its recommended reading.
Alexander envisioned a pattern language as a structured system in which the semantic relationships between the patterns create a whole that is greater than the sum of its parts, much like the way that grammatical relationships between words make language meaningful.
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