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Language Evaluation

Confident decisions through reliable language evaluation

What is Language Evaluation?

When translation quality is unclear, every multilingual decision becomes harder. You risk publishing errors, overspending on the wrong workflow, or trusting output that is not fit for purpose. Language Evaluation is the process of systematically assessing the quality of translated content – whether it’s produced by human linguists, through post-editing, or by AI and machine translation systems.

It goes beyond a simple proofread or subjective review: it’s a structured, evidence-based method for measuring how well a translation meets its intended purpose. At Attached, we help organizations evaluate translated content with structured, evidence-based methods so they can benchmark quality, reduce risk, and improve performance across human, machine, and AI-driven workflows.

By applying consistent criteria and internationally recognized standards, Language Evaluation helps you understand how translations perform in terms of accuracy, terminology, readability, tone, and overall usability. It identifies both strengths and weaknesses in the output, offering a clear picture of where quality stands today and how it can be improved tomorrow.

In practice, this means moving from opinions to data. Instead of “this feels off,” you can pinpoint why – for example, whether an issue stems from mistranslated terminology, inconsistent style, or a lack of contextual adaptation. This makes it possible to track performance over time and to make informed decisions about your localization strategy.

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ISO 5060, ISO 24495 and ISO 18587

Attached fully endorses the Dutch language industry covenant

Why Language Evaluation matters

Whatever translation quality level you are aiming at, guessing where you stand is never a good start. Without structured evaluation, it is difficult to know whether your translations are accurate enough, consistent enough, or safe enough for the context in which they will be used.

By applying structured language evaluation, you can:

  • Benchmark quality across machine translation engines, Large Language models (LLMs) or translation providers
  • Gain efficiency by identifying recurring issues and improving post-editing processes
  • Reduce risk by identifying critical versus non-critical errors (especially important in legal, medical, or technical content)
  • Make informed decisions about budgets, workflows, and resource allocation

Whether you want to test an LLM or MT engine, verify external work, or optimize your own teams, Attached helps you turn evaluation into actionable insights.

What We Deliver

  • ISO-aligned evaluation methods

We apply structured evaluation frameworks, including ISO 5060-based approaches, to ensure transparent, consistent, and comparable results.

  • Multiple review models

Depending on your goals, we offer quality scoring, post-editing distance analysis, scorecard-based reviews, and benchmark comparisons across providers, engines, or workflows.

  • Expert evaluators

Your content is assessed by experienced language professionals with strong revision, evaluation, and quality management expertise.

  • Flexible project scope

We can evaluate small samples for quick checks, larger datasets for benchmarking, or broader multilingual content sets for in-depth quality audits.

  • Clear error typologies

We assess issues by category and severity, such as accuracy, terminology, style, fluency, and locale conventions, so you can see what matters most.

  • Reporting you can act on

You receive clear quality scores, pass/fail thresholds where needed, practical findings, and recommendations for improvement.

Who benefits from Language Evaluation?

Language evaluation is valuable wherever multilingual content plays a critical role:

  • Businesses & enterprises – When translation quality is inconsistent, it affects customer trust, brand perception, and operational efficiency. Language Evaluation helps businesses benchmark quality, improve workflows, and make smarter decisions about providers, tools, and internal processes.
  • Regulated industries – In legal, medical, financial, and technical environments, even small translation errors can create significant compliance, safety, or reputational risks. Structured evaluation helps identify critical issues early and supports safer multilingual communication.
  • LSPs and localization teams – Translation providers and internal content teams benefit from independent, objective quality assessment that strengthens quality assurance, validates performance, and highlights areas for improvement.
  • Technology-driven companies – If you are using MT, LLMs, or hybrid AI workflows, Language Evaluation helps you compare output quality, monitor performance over time, and decide where automation adds value and where human oversight remains essential.
  • Procurement & decision-makers – When choosing between vendors, engines, or workflows, opinion is not enough. Language Evaluation provides the evidence needed to support budget decisions, supplier selection, and long-term localization strategy.
  • Internal teams – Clearer quality standards reduce rework, improve collaboration between stakeholders, and make multilingual content operations more efficient from brief to delivery.

Where translation quality matters, Attached’s Language Evaluation services help you move forward with greater clarity and confidence.

Ready to do it the smart way?

With Attached you don’t just get an error score – you get clear insights and a partner who helps turn evaluation into improvement and informed decision-making.

👉 Book a consultation today and discover how our Language Evaluation services can make your content stronger, safer, and more effective.

FAQs on Language Evaluation

What is Language Evaluation?

Language Evaluation is a structured method to measure the quality of translated content using clear criteria, scores, and ISO-aligned techniques. It shows exactly how accurate, consistent, and fit-for-purpose your translation is.
Want to see which method fits your content? Our experts can walk you through the options.

Why is Language Evaluation important?

It’s important because it removes guesswork. You immediately know whether your translation is reliable enough for publication or whether it contains risks that could affect brand, revenue, or compliance.

Can you evaluate AI-generated translations?

Yes. We evaluate output from MT engines, LLMs, hybrid workflows, and fully human translations — all with the same structured, comparable framework.
If you’re testing multiple engines or models, we can benchmark them side-by-side.

What do I receive after an evaluation?

You receive a clear report with quality scores, error categories, pass/fail thresholds, strengths, weaknesses, and improvement advice.
Want to go further? We can also help you implement a better workflow or provider setup.

How much content do you need to perform an evaluation?

We can evaluate small samples for quick checks or larger volumes for deeper insights. The amount depends on your goals, risk level, and whether you want benchmarking or a full audit.
If unsure, share your content – we’ll advise the ideal scope within minutes.

Which industries benefit most from Language Evaluation?

Industries with multilingual content that must be correct, consistent, and low-risk: travel, tech, finance, legal, healthcare, retail, and any business scaling internationally.
If your content impacts trust or revenue, evaluation is almost always worth it.

Can you compare multiple translation providers or engines?

Yes. We can score and benchmark different LSPs, MT engines, or AI models so you know exactly who or what performs best.
Many clients use this to make budget and tooling decisions with confidence.

Is Language Evaluation compliant with ISO standards?

Yes. Attached works with ISO 18587, ISO 5060 and ISO 24495 — ensuring structured, consistent, and internationally recognized evaluation.
This gives you results that stand up to internal, external, and regulatory scrutiny.

How fast can an evaluation be completed?

Most evaluations take 2–10 business days depending on volume, complexity, and languages.
If you need a fast check for urgent publication, we can often accommodate same-week delivery.

Why choose Attached

  • Tailored solutions perfectly aligned with your specific needs and goals.
  • A comprehensive service package to support your international growth and communication from A to Z.
  • A dedicated team always ready to assist you, combining AI-powered tools with human expertise.

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