ISO 9241-125:2017

Overview

ISO 9241-125:2017 - Ergonomics of human‑system interaction: Guidance on visual presentation of information provides guidance for how software-controlled information should be presented visually, regardless of device. It focuses on syntactic and semantic properties (for example, coding and labelling techniques) and on organizing information to match human perception and memory. ISO 9241-125:2017 is guidance (not a prescriptive rulebook): it is intended to be applied with knowledge of the task, users and context of use, and it does not cover detailed chart/graph design or non-visual modalities (auditory, tactile).

Key Topics and Technical Highlights

The standard addresses a broad set of visual presentation and information-structuring concerns, including:

• Visual structuring of information
  • Arranging and labelling content, consistent placement, grouping and sequencing for rapid detection and comprehension
  • Managing information density and distinction of groups
• Legibility and presentation properties
  • Legibility of characters and symbols, character height, and scaling of visually presented information
• User interface elements and organization
  • Best practices for lists, tables, entry fields and window management (identification, resizing, scrolling and focus cues)
• Graphical objects
  • Guidance on cursors, pointers and icon design; text alternatives for icons; occlusion and position considerations
• Accessibility and language considerations
  • Applicability limits and adaptations for non‑Latin alphabets; emphasis on understanding accessibility needs and context
• Use across devices and technology
  • Guidance applies regardless of single or multiple presentation technologies but must be adapted to device, environment and user tasks

(ISO 9241‑125 intentionally omits detailed rules for charts, graphs and information visualization techniques.)

Practical Applications - Who Uses It

ISO 9241-125 is valuable for professionals involved in digital information design and evaluation:

• UI/UX designers and product designers - to create legible, well‑structured screens and controls
• Interaction designers and information architects - for organizing content, lists and tables
• Accessibility specialists and usability practitioners - for audits, heuristic evaluations and compliance checks
• Software developers and QA teams - to implement predictable window behaviour, cursor handling and element labelling
• Technical writers and content strategists - for consistent labels, units and grammatical construction

Use cases: design specifications, design reviews, heuristic evaluations, accessibility assessments and cross‑device interface planning.

Related Standards

• ISO 9241 series - ergonomics of human‑system interaction (general family)
• ISO 9241‑112 - referenced for high‑level ergonomic guidance that applies to all modalities

Keywords: ISO 9241-125, visual presentation of information, ergonomics, human-system interaction, UI design guidelines, accessibility, legibility, information structuring, user interface elements.