Translating a document is one thing. Translating software is another beast entirely.
When you localise an application, you’re not just converting words from one language to another—you’re rebuilding the user experience from the inside out. Every button, every error message, every tooltip needs to feel as though it was designed for that specific user, in that specific market. Get it wrong, and your polished interface becomes a frustrating puzzle.
At Omnilingua, we’ve spent over 25 years helping companies navigate the complexities of technical and medical translation. Software localisation brings its own unique challenges—and understanding them is the first step to getting it right.
How Software Localisation Works
Unlike document translation, where you work with complete sentences in context, software localisation often means working with fragments—isolated strings of text that could appear anywhere in an application. A single word like “Save” might be a button label, a menu option, or part of a confirmation message. Without knowing which, even skilled translators can make the wrong choice.
The process typically involves extracting translatable text from the software’s resource files (formats like .xml, .json, .resx, or .strings), translating those strings using specialist localisation tools such as Alchemy Catalyst or Passolo, and then reintegrating the translated content back into the application. Throughout, quality assurance testing ensures nothing has broken—that buttons still fit, that text displays correctly, and that the application behaves as expected.
It’s a process that demands both linguistic expertise and technical precision.
UI/UX Translation: Designing for Global Users
A user interface is like a conversation between the software and its user. When that conversation happens in a different language, the entire dynamic shifts.
Consider German, where compound words can stretch to extraordinary lengths. A neat English button labelled “Settings” becomes “Einstellungen”—suddenly 50% longer. Spanish and French typically expand by 20-30% compared to English. If your interface wasn’t designed with this flexibility in mind, you’ll find text spilling out of buttons, truncated labels, and layouts that look decidedly amateur.
Then there’s the question of cultural expectation. Colour choices, icon meanings, even the formality of language—what feels intuitive in one market can feel foreign or even off-putting in another. A medical device application, for instance, needs to maintain the same sense of professionalism and trust across every language version. The translation must feel native, not translated.
The Technical Challenges of Software String Localisation
Software strings are deceptively tricky. Here’s why:
Character limits are unforgiving. Mobile interfaces especially leave little room for expansion. A translator might know exactly the right phrase, but if it doesn’t fit the allocated space, compromises must be made—without sacrificing clarity or accuracy.
Context is often missing. A string file might simply say “Open”—but open what? A file? A door? A new window? Is it a verb (a command) or an adjective (describing a state)? Without screenshots, developer notes, or access to the running application, translators are working partially blind.
Variables and placeholders add another layer of complexity. A string like “You have {0} items in your {1}” requires the translator to understand what those placeholders represent—and to ensure the translated sentence still makes grammatical sense regardless of what values are inserted.
Concatenation problems occur when developers build sentences by joining separate strings together. This might work in English, but different languages have different word orders, gender agreements, and grammatical structures. What assembles correctly in one language becomes nonsense in another.
Right-to-Left Language Localisation: Flipping More Than Text
Localising for Arabic, Hebrew, or Farsi isn’t simply a matter of translating the words—it requires rethinking the entire visual layout.
In right-to-left (RTL) languages, users expect interfaces to mirror. Navigation menus move to the right. Progress bars fill from right to left. Back buttons point the opposite direction. It’s not just about text direction; it’s about matching the natural reading flow that users instinctively follow.
Complexity increases when you encounter bidirectional text—mixing RTL content with English brand names, numbers, or technical terms that remain left-to-right. Managing these transitions gracefully requires careful attention and testing to ensure the interface doesn’t become a confusing jumble of competing directions.
Help Documentation: The Forgotten Piece of the Puzzle
Software doesn’t exist in isolation. Users rely on help files, FAQs, tooltips, and support documentation to understand how to use it effectively. Yet this supporting content is often treated as an afterthought in localisation projects.
The challenge lies in consistency. If your application calls something a “Dashboard” but your help documentation refers to it as a “Control Panel,” users will struggle to connect the dots. Terminology must be synchronised across every touchpoint—and updated simultaneously when the software evolves.
This is where Translation Memory software proves invaluable. By storing previously translated terms and phrases, it ensures that “Dashboard” remains “Dashboard” across your application, help files, tooltips, and user guides—every time, without fail. It also means that when your software updates, you’re not starting from scratch. The system identifies what’s changed and what can be reused, reducing both turnaround time and cost while maintaining the consistency your users depend on.
For regulated industries, this consistency isn’t just about user experience—it’s about compliance. Medical device software translation, for instance, requires documentation that precisely matches the interface, ensuring users can follow instructions accurately and safely.
Why Specialist Expertise Matters for Medical and Technical Software
When software is used in healthcare settings or technical environments, the stakes rise considerably. A mistranslated instruction in a medical device application isn’t merely confusing—it could compromise patient safety. An ambiguous term in engineering software translation could lead to costly errors.
This is where specialist translation expertise becomes essential. Translators need more than linguistic fluency; they need subject matter knowledge. They need to understand regulatory requirements, industry terminology, and the context in which the software will be used.
At Omnilingua, our linguists combine technical expertise with advanced localisation tools to deliver software translations that are accurate, consistent, and fit for purpose. We work directly with formats including XML and other standard file types, using Translation Memory technology to ensure terminology remains consistent across your entire product suite—and across future updates.
Getting It Right First Time
Medical and technical software localisation is a discipline where precision meets cultural nuance. It requires translators who understand both the language and the technology, processes that maintain quality at every step, and tools that support consistency across complex, interconnected content.
If you’re planning to localise your software or application for international markets, we’d be happy to discuss your requirements. With over 25 years of experience in medical and technical translation, we understand the challenges—and we know how to solve them.