CACrown ArchivesHistory · sources · collections
Menu
Research dossier · General Reference

SNAPI

Open-knowledge reference entry

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 12, 2026
Entity authorityQ7391796
Source-derived summary

SNAPI is a system that allows a visually impaired user to record their preferences onto a smart card or other security token.

When a card, mobile phone, key fob token or similar portable object containing SNAPI data is put into public or shared IT equipment, or moved into the field of the equipment's sensor, it informs the terminal about the user's preferred user interface. The terminal could be a shared personal computer, a public kiosk, a ticket machine, a turnstile or an automated teller machine (ATM). This can enable various accessibility modes such as a high-contrast display or increased typeface size, audible prompts, or increased time for responses for the duration of the transaction. When the transaction is complete, the terminal returns to its default settings.

The coding is specified in the European standard EN 1332–4. The Local Authority Smartcard Standards e-Organisation (LASSeO) has supported the inclusion of SNAPI coding in various UK local authority smart card schemes.

Editorial summary

This brief starts where responsible research should: with the source description of “SNAPI” as open-knowledge reference entry. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1332—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where SNAPI, Open-knowledge and entry can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as open-knowledge reference entry. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 12, 2026. The linked authority identifier is Q7391796. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1332.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “SNAPI”, its source revision and the description used here.
  2. Expand the search: follow SNAPI primary sources, SNAPI archive and SNAPI research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “SNAPI”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from SNAPI” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.