S1000D DMC Decoder

It takes an S1000D data module code — the structured identifier every data module carries — and breaks it into its segments with a plain-language explanation of each: the model identification code, system difference code, SNS (system/subsystem/assembly), disassembly code and variant, information code and variant, item location code, and learn codes when present. It also copes with real-world input: DMC- filename prefixes, issue/in-work/language suffixes, and file extensions are recognized and set aside.

No. The decoder runs entirely in your browser — there is no request, no logging, and nothing to configure. Paste codes from restricted programs with a clear conscience (though your own program's rules always apply).

Because S1000D is tailored per project. Information code meanings come from the specification's tables as constrained by your project's business rules, SNS structures differ by domain, and item location conventions can be tailored. The decoder tells you what each segment is and what it commonly means, and links to our explainers for the depth — it deliberately doesn't over-assert semantics your BREX may define differently.

Yes — paste a whole data module filename and it will separate the DMC from the issue, in-work, and language segments, and if the code carries the extra learn code segments used by learning data modules, it flags them. If something doesn't parse, it tells you which segment looked wrong instead of failing silently.