One Vendor or Two? Why Flexibility Matters When Choosing a TMS and Translation Partner

Buying language services and translation software from the same company can make things easier at first. You sign one contract and work with one account team. The drawbacks tend to show up later, when something needs to change. Maybe the software doesn’t handle a new content type well, or translation quality has slipped in an important market. When one vendor provides both, making a change means reworking the whole arrangement.

This setup is sometimes called monolithic localization. One partner provides the technology, usually a translation management system (TMS), and the translation services under one contract. The other option is to choose a TMS partner that fits your content and workflows and, separately, a translation partner that fits your languages and industry.

As a localization program grows and brings AI into its workflows, the flexibility to change one part without affecting the other can prevent time-consuming disruptions.

Monolithic Setups Aren’t Unique to Localization

IT teams have faced this choice for years. Some business software is built as one large system from a single vendor, with every feature sharing the same code. Monolithic software is simple to buy but hard to change, because its parts are designed to work together and don’t come apart easily.

Many companies have moved toward building their systems using separate tools that connect to each other. They give up some of the ease of dealing with one vendor, and in return they can replace a single tool without rebuilding the rest.

Localization teams face a similar decision about their TMS and translation partner.

Why a Bundled Vendor Is Hard to Leave

Vendor lock-in happens when leaving a vendor would cost more, or cause more disruption, than staying, even after the vendor stops being a good fit. When one company provides both your software and your translation, that risk goes up, because the two are set up to depend on each other. The vendor’s translators often work only in its own TMS, and your workflows and integrations are built around that system. If you like the software but not the translation quality, or the other way around, you usually can’t keep one and drop the other.

Your data makes leaving harder. Translation memories (TMs) and glossaries build up over the years, and in a bundled setup they often live in the vendor’s system. TMs can usually be exported in a standard format (TMX), but the export may leave out context and review history, and some vendors charge for it. You’ll also need to rebuild your workflow settings in the new system.

The arrangement also depends on the vendor staying the same. If the vendor is acquired or raises its prices, the change affects your technology and your translation at once.

With separate partners, a change on one side leaves the other in place. If you bring on a new translation partner, your TMS, workflows, and TMs are unaffected. If you move to a new TMS, your translation partner keeps working with you, along with everything it has learned about your products and terminology. Switching still takes planning, but it’s a much smaller project.

Who Controls Quality When AI Is Involved?

As AI takes on more translation work, you need to know how each piece of content was produced and who reviewed it. For regulated or customer-facing content, “the vendor handled it” may not be enough of an answer.

With a bundled vendor, the vendor picks the AI models and sets its own quality checks. You receive the finished translation, but you may have limited visibility into the steps behind it or what standard it was held to.

When you control the TMS, you set the rules. You decide which content can go through machine translation and which content is high-risk enough to need human review. Your translation partner works within those rules, and the review history and quality scores are recorded in your own system, which makes audits and quality reporting easier. You can also bring in a separate reviewer who isn’t tied to the partner or the AI model that produced the translation.

Knowing What You’re Paying For

A bundled vendor often prices software and translation together, sometimes with a discount for buying both. The combined price is easy to budget for, but it’s hard to tell how much covers the TMS and how much covers the translation work. If one part is priced above market, the total doesn’t show it. Comparing the deal with other vendors is also harder, since few of them bundle services in the same way.

With separate partners, pricing is more transparent. The TMS has its own license fee, and the translation partner has its own rates, usually per word or per project. You can compare each one against other providers and negotiate each contract separately. If translation costs increase, you can take that up with your translation partner without reopening the software agreement.

Adapting as Your Program Changes

A bundled vendor plans its software and services around one roadmap. When it releases a major update, your team has to adjust to it, even if the timing falls in the middle of a product launch or regulatory submission. The opposite problem comes up too. If you need functionality the vendor hasn’t built yet, such as a new AI feature or support for a new file type, you wait until it’s on the vendor’s schedule.

With separate partners, the software and translation follow different schedules. Your TMS provider still releases updates on its own timeline, but those updates don’t change who translates your content. If your program needs features your current TMS doesn’t offer, you can upgrade or change it and keep your translation partner. You can also add a second translation partner for a new market or a specialized content type, such as medical or legal material, without changing your software setup.

Building a Flexible Program

A single vendor can be the right fit for some programs, especially smaller ones with steady needs. But enterprise programs rarely stay the same for long. Keeping your TMS and translation partner separate lowers the cost of changing later. Managing two partners takes more coordination, but each decision about your software or your translation is yours to make.

Argos Multilingual works as a translation partner with companies that use XTM as their TMS. If you’re weighing your options, talk to our team about building a localization program that can adapt as your business changes.

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