Why should switching a requirements form's language leave users' existing input untranslated?
Switching a requirements form's language should change labels, instructions, and option wording while retaining personally entered content. Automatically transforming a customer's Chinese description into another passage after switching to English prevents them from knowing what they will submit.
Retention does not mean fixing every display unchanged. Standard system choices may use the current language, and date formatting may adapt. Distinguish field identity, display wording, and original answers so language changes preserve business meaning. See How to Build a Multilingual Corporate Website for related checks.
Interface text and user input are different content
Website teams supply interface text such as "Company name," requested services, and formatting instructions, which need language-version management. Visitors supply names, addresses, descriptions, and resource links, usually retained as originals.
Suppose someone writes "English copy already available; only page development required" in Chinese, then switches to locate a button. Keep that sentence rather than turn it into "English website required" or clear it because the page language changed.
Do not translate names, companies, or proper terms without instruction. Fluent machine translation may alter brand spellings, models, or limitations. Recipients can consult auxiliary translations if needed, clearly separated from the original.
When passing originals to another team, preserve their origin and expression. Auxiliary translation aids understanding but does not confirm key conditions. Qualifiers such as "only," "not currently," and "already available" need checking against intent, rather than removal for fluency.
User-requested translation is a separate explicit feature needing preview and confirmation and a retained relationship to the original. A language button must not double as rewriting. Simple forms need no automatic translation workflow for switching.
Document a shared principle: system wording switches language; visitors' input remains original; standard options change displayed names while preserving identity. Developers, translators, and testers then share a basis for judgment.

Keep field and option identities separate from display wording
If software identifies choices by Chinese labels, translation can lose answers or select the wrong service. Displaying "Website redesign" in English must not turn an existing choice into a new option.
Stable identities help: an option can have several language names while representing one business object. Existing systems determine the implementation; changeable interface wording must not be the only identity.
Synonym changes should preserve relationships too. Renaming "Contact email" to "Work email" cannot automatically create a field and discard input. If purpose genuinely changes to accepting only work email, assess validation separately rather than solve it through renaming alone.
Deleted or merged choices cannot retain old mappings indefinitely. Recovered drafts referencing retired services need current-scope confirmation. Stable identity assists maintenance without replacing business-version handling.
Compare actual answers before and after switches, beyond translated labels. Service identity, multiple-choice relationships, contacts, and date meanings should match. New display language must not silently select another business option.
Switching methods determine state retention
In-place text replacement and navigation to another language URL may change state differently. The former usually retains page inputs; the latter may reload. Design recovery for actual methods rather than broadly promise total retention.
List input objects: text, standard choices, dates, step position, files, and unfinished requests. For each, determine retention, rechecking, or user recovery. Keeping text while losing selected services is insufficient.
Check attachments separately. Local selections may not survive reconstruction; temporary uploads still need valid associations. Warn before language navigation that cannot retain files, and mark reselection accurately afterward rather than show invalid filenames as restored.
While submission runs, restrict actions likely to interrupt it according to implementation or state progress clearly. A language change should not accidentally resubmit or remove the checking route for outcomes.
Navigation also requires handling URL language parameters and form state. Language parameters select the interface; they should not carry complete descriptions or private contacts. Existing recovery mechanisms may apply, but explain scope rather than put all input into public links for convenience.
Align retention with draft scope. Say when it is device-local; logged-in cross-device recovery needs corresponding capabilities and permissions. Multiple languages do not automatically provide cross-device storage.

Summaries can change labels without rewriting answers
Standard-service and option summary labels can use the interface language. Free text remains original, optionally identified as "Your entered content." Users can understand fields and confirm their actual wording.
Preserve meanings of unanswered, undecided, and explicitly absent. Translation must not turn uncertainty into no requirements or fill blanks with defaults. Maintain multiple-choice exclusivity despite label changes.
Retain currencies and date meanings independently. English does not convert a CNY budget to USD, and display formats do not change project dates. Summaries should keep these conditions identifiable.
Notifications and records may use labels convenient for recipients, while preserving original inputs and option identities. Chinese email labels can still map English-page choices to the same service scope without forcing customers to rewrite descriptions.
Bilingual display need not put every label in both languages publicly. Internal records can offer comparisons where recipients need them. Public summaries should support visitors' checks without crowding phones with repeated wording.
Test the complete route beyond translated words
Prepare controlled samples with mixed languages, company proper names, multiple services, undecided dates, and attachments. Fill, switch, and check original values, choices, and current step. Empty forms cannot be the only sample.
Change an answer before switching too. Recovery of its earlier value indicates an old snapshot rather than current state. This reveals save timing: some fields save on leaving, while language navigation may happen first and lose the latest edit.
Return to the original language to check bidirectional retention. Some faults appear only on the second switch, restoring initial defaults. Repeated switches reveal repeated state resets. See How to Design a Multilingual Website Language Switcher: Language, Region, Saved Preferences, and SEO for related checks.
Cover previous steps, review opening, refresh recovery, and final submission, recording expected scope at each point, especially different text and file conditions. Unsupported file recovery is not automatically failed text retention.
Finally reread the same saved record and notification service and text. Success means current-language system wording, unchanged visitor originals, stable standard answers, storage matching final review, and clear explanation of unretained parts.
Reuse these routes for new languages and add long-text and font checks. Translation review verifies wording; operation checks verify state. Complete labels alone cannot establish full acceptance.

Frequently asked questions
Why not directly translate customer descriptions?
Switching usually expresses reading preference rather than permission to rewrite answers. Proper names, conditions, and details may change. Auxiliary translation needs retained originals and clear separation without silent overwrite.
Must standard-option wording retain the original language?
No. System options can use current-language labels with the same stable identities. Users select business meaning; changed names must not alter scope.
Must attachments survive language switching?
Define this from switching and uploading methods. Reconstruction that prevents local recovery needs advance explanation and reselection. Draft support alone does not guarantee file retention.
Can Chinese labels receive foreign-language form submissions in the CMS?
Yes, with accurate option relationships, complete originals, and staff awareness of interface language and contacts. Label translation must not replace originals or alter choices.
How can input retention be proven?
Use realistically structured controlled samples for round-trip switching, edits, refreshes, and submission, then inspect records. Empty-label checks or one initial switch do not cover retention.