Definition
BCP 47 defines language tags such as en, fr-CA, or zh-Hant to identify the language of content. Optional subtags can distinguish script or regional variation when needed. A tag describes the text; it does not establish a product market, shipping entitlement, or translation quality.
Why It Matters
- A multilingual catalog needs to distinguish language variants without treating each translated label as a different product.
- The Commerce Intelligence OS framework can connect language-specific text to one product identity while retaining its source.
How It Works
- Store original text, product identity, language tag, and source together. Use registered subtags and only the specificity needed for the content.
- Validate tags with a standards-aware library or registry-backed process. Keep unknown language explicit rather than guessing from the sales country.
- Define supported-language selection and fallback rules. If a preferred translation is absent, expose the fallback consistently instead of labeling another language as the requested one.
- Carry language metadata into the presentation layer, including suitable HTML language declarations. Review translation accuracy separately from tag validity.
Ecommerce Example
Context: Illustrative example: one product has a general French label and a reviewed Canadian French variant.
Recommended move: Store them as fr and fr-CA text attached to the same product, then apply a documented fallback when the regional variant is unavailable.
Why it matters: Language selection remains separate from Canadian shipping eligibility. This is a proposed catalog modeling example, not a deployed feature claim.
iKawn Framework
Identify
The iKawn ontology framework keeps product identity separate from translated labels.
Tag
Attach language metadata to each text value.
Select
Apply explicit language preferences and fallback rules.
Verify
Review both tag validity and the meaning of translated claims.
Concise Summary
Language tags make multilingual catalog text identifiable. Keep language selection, product identity, and market eligibility as separate concerns.