Overview
ISO/IEC 18035:2003 - Information technology - Icon symbols and functions for controlling multimedia software applications - defines a consistent set of multimedia control icons and their primary functions for on‑screen use. The standard specifies how icons such as Play, Pause, Stop, Rewind, Fast Forward, Scan, Replay, Loop, Record, Set Volume and Mute should be represented and behaves as guidance for implementers of multimedia user interfaces. It focuses on the graphic representation, user interaction and basic functional intent of these controls so users can reliably invoke media actions across applications.
Key topics and technical requirements
- Primary function mapping: Each icon graphic, when used within the permitted variations, must serve the primary function identified in the standard (e.g., a solid right‑pointing triangle = Play).
- Icon specifications: Visual components are described (examples: Play = filled right triangle; Stop = filled square; Pause = two parallel vertical bars; Replay = clockwise arrow with incomplete circular shaft).
- Interaction requirements:
- Selection: Icons are activated by pointing and invoking an input device (e.g., mouse click).
- Visual feedback: Systems must clearly distinguish available vs unavailable functions and provide feedback on invocation and status.
- Arrangement: Related controls should be grouped and organized in rows, columns or boxes.
- Recommendations:
- Use a consistent metaphor and highlighting to make icons prominent.
- Colour is allowed; cell sizes need not be square and should match icon complexity.
- Avoid text inside icons; if text is used, prefer plain typefaces and plan for localization.
- Conformance: A system conforms when its multimedia navigation icons meet subclause 5.1 of ISO/IEC 18035 and applicable clauses of ISO/IEC 11581-1:2000.
Practical applications and users
Who uses ISO/IEC 18035:
- UI/UX designers and interaction designers building media players, streaming apps, e‑learning modules, presentation software and in‑app multimedia controls.
- Software developers implementing cross‑platform media controls to ensure predictable behavior and visual consistency.
- Accessibility and usability specialists ensuring controls provide clear feedback and status indicators.
- Standards architects and QA teams verifying conformance and interoperability across applications and platforms.
Practical benefits:
- Improves user familiarity and learnability by aligning with conventional hardware metaphors (tape/CD controls).
- Reduces user errors and increases consistency across multimedia applications.
- Eases internationalization by minimizing text in icons and promoting universally recognized symbols.
Related standards
- ISO 14915-2 - Software ergonomics for multimedia user interfaces - multimedia navigation and control (functional details).
- ISO/IEC 11581-1 and ISO/IEC 11581-6 - General icon symbol rules and action icons (global variations and icon families).
Keywords: ISO/IEC 18035, multimedia control icons, Play Pause Stop icons, icon symbols and functions, user interface standards, media control icons, software ergonomics.