Technical documentation has characteristics that make it one of the best candidates for machine translation: precise language, consistent terminology, imperative sentence structure, and limited creative expression. These same characteristics that make technical writing sometimes dry to read are exactly what produces high-quality machine translation output.
Documentation Types and Translation Approaches
User Manuals and Getting Started Guides
High candidate for machine translation + post-editing. Clear procedural language, simple sentence structure, consistent terminology. Priority for translation — directly impacts customer success and support ticket volume.
- Machine translate entire manual
- Human review of safety-critical sections (warnings, warnings, hazards)
- Technical reviewer validates translated procedure accuracy
API Reference Documentation
API documentation typically has significant untranslated content (code samples, endpoints, parameter names) surrounded by explanatory text. Machine translation handles the explanatory text well while code remains in English.
- Mark code blocks and technical strings as "do not translate"
- Translate explanatory text and descriptions
- Keep all code examples, variable names, and endpoint paths in English
Software Help Content
In-application help text and documentation associated with localized software. Must use the same UI element names as the localized UI — coordinate with the product localization team for approved terminology.
- Get the approved list of localized UI element names from product localization
- Build these into a do-not-translate list — only use the approved localized term, never machine-translate a UI element name independently
- Translate all other content with machine translation + review
Installation and Safety Instructions
Safety-critical documentation for physical products. In many markets, safety documentation is legally required to be in the local language. Accuracy is paramount — errors can cause harm and create legal liability.
- Professional translation required (not machine translation only)
- Have a subject matter expert review translated safety procedures for accuracy
- Include standard safety symbols (ISO compliant) to supplement text across languages
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Add to Chrome — It's FreeBuilding a Technical Terminology Glossary
Terminology consistency is the single most important quality factor in technical documentation translation. Before any translation work begins:
- Extract all product-specific terms, UI element names, and technical concepts from the documentation
- Research the approved translation for each term — check how established competitors or standards bodies translate the same terms in each target language
- Create a bilingual glossary spreadsheet: English term | Language A equivalent | Language B equivalent | Notes/Context
- Share the glossary with all translators before work begins
- Configure Translation Memory (TM) tools to enforce glossary terms
- Update the glossary when new features and terms are added
CAT Tools for Technical Documentation Translation
Computer-Assisted Translation (CAT) tools are essential for technical documentation at any significant volume:
- SDL Trados: Industry standard for professional technical translation agencies
- memoQ: Strong alternative with good collaboration features
- Phrase (Memsource): Cloud-based, good API integration for developer documentation workflows
- OmegaT: Free, open-source CAT tool — adequate for smaller projects
- GitLocalize / Crowdin: Designed for developer documentation in Git repositories
All CAT tools provide Translation Memory (TM) — repeated segments are only translated once and reused automatically. For product documentation where the same warning, procedure, or description appears multiple times, TM typically produces 40-60% reduction in billable word count versus fresh translation.
Handling Code and Technical Strings in Documentation
Standard conventions for technical documentation translation:
- Never translate: Code blocks, commands, file paths, function names, variable names, API endpoints, error codes, configuration keys
- Do translate: Code comments in educational documentation (where understanding the comment is part of the learning), plain language explanations, warnings and notes
- Product names: Keep in original English (or the brand's official localized name if one exists)
- Units: Convert to local standard (metric for EU, imperial for US) in user-facing documentation
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Install Translate in Many LanguagesFrequently Asked Questions
Is machine translation suitable for technical documentation?
Yes — technical documentation is one of the best candidates for machine translation because precise, unambiguous language produces high-quality MT output. Post-editing (human review of MT) is the industry standard, producing professional quality at 40-60% lower cost than full professional translation.
What is the biggest challenge in translating technical documentation?
Terminology consistency. The same UI element or technical term may be rendered differently across a 50-page document without a terminology glossary. Build a bilingual glossary before translation and configure CAT tools to enforce it throughout.
Should I use Translation Memory for technical documentation?
Yes. Translation Memory stores previously translated segments and reapplies them to identical future segments — producing 40-60% reduction in translation effort for documents with repeated phrases (safety warnings, standard procedures, UI labels). All professional CAT tools include TM.
How do I handle untranslatable technical terms (code, commands, UI elements)?
Code blocks, commands, file paths, function names, and API endpoints are never translated — these are English conventions in software. Mark them as "do not translate" in your translation management system. UI element names must use the approved localized UI names from the product localization team, not machine-translated independently.
What format should I use for translatable technical documentation?
DITA XML or Markdown for structured docs, XLIFF for strings — maximum CAT tool compatibility. Avoid PDF as source format (requires OCR). For developer docs, GitLocalize or Crowdin integrate with GitHub repositories to manage translation alongside code changes.
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