The ongoing adaptation of an interface as it crosses linguistic, cultural, and regional boundaries, transforming locally meaningful patterns into ones that resonate in every context.
Layers
Linguistic
Surface text: translation, plural rules, grammatical gender, script direction.
Cultural
Communication directness (high-context vs low-context cultures), formality expectations, colour and iconography symbolism, culturally-situated mental models.
Regional
Date, time, number, currency, and address formats. Measurement units. First day of week. Legal and regulatory requirements (GDPR, data residency, accessibility mandates). Links to data entry (forgiving format parsing), good defaults (smart defaults from location), settings (language and timezone preferences), privacy.
Variants
Full localisation
All four layers adapted — linguistic, cultural, regional, contextual. Reserved for areas where investment justifies the depth. Requires ongoing maintenance as language evolves and cultural norms shift.
Partial localisation
Translate the interface, format the data, defer deeper cultural adaptation.
Community localisation
Actor-contributed translations. Requires review workflows, quality thresholds, and attribution. See also collaboration.
Machine-assisted localisation
Bot-generated translations (with human review). Quality varies by language pair and domain. See also generated content.
Accessibility
langattributes on elements signal language to screen readers, enabling correct pronunciation and hyphenation- RTL/LTR is both a localisation and accessibility concern
- Translation quality directly affects plain language thresholds — a well-written English interface can become inaccessible in a poorly translated locale
Decision tree
Resources & references
- W3C Internationalization Activity — technical standards for web internationalisation
- GOV.UK / How we improved translations on GOV.UK
- Figma / Behind the scenes: international keyboard shortcuts — keyboard layout variation across locales
- Nielsen Norman Group / International user research — research on cross-cultural usability
- High-context and low-context cultures
- Hofstede, G., Hofstede, G.J. & Minkov, M. (2010) Cultures and Organizations: Software of the Mind — cultural dimensions model
Related patterns
Precedes
- Conversation — dialogue structure adapted to cultural communication norms
- Generated content — locale-aware generation
- Data entry — locale-aware input parsing and format tolerance
- Notification — localised message content, timing conventions
- Help — localised documentation and support content
Enacts
- Adaptability — the capacity that localization exercises
- Shareability — locale-aware URLs and shared content
- Privacy — data residency, GDPR, locale-specific regulation
- Temporality — timezone handling, date format conventions
- Density — text expansion affecting information density
- Learnability — learning curves differ across localised interfaces
Complements
- AI tuning — locale as a generation parameter
- Form — locale-aware parsing and format tolerance for input.
- Onboarding — first-run locale detection and selection
Tangentially related
- Collaboration — multilingual team dynamics
- Workspace — per-actor locale in shared spaces
- Suggestion — locale mismatch prompts
- Bot — multilingual interaction
- Explanation — culturally appropriate explanation styles
Related
- Text lens — tone adjustment with cultural bounds
Preceded by
- Good defaults — locale detection and sensible starting configuration
- Information architecture — controlled vocabularies and label strategies that localization must adapt
- Settings — language, timezone, and format preferences