Jurisdiction(s):
United Kingdom

Key definition

Accessible data definition

What does Accessible data mean? In legal practice, accessible data refers to information that can be located, retrieved and supplied using ordinary systems and resources, without disproportionate cost, time or specialist recovery. It is a descriptive expression rather than a universal statutory term, and what is “accessible” is fact-sensitive and open to interpretation. Under the Freedom of Information Act 2000, information is exempt if it is “reasonably accessible to the applicant by other means” (for example via a website or publication scheme, including on payment); in Scotland, the equivalent is FOISA 2002 section 25 (“otherwise accessible”). The Environmental Information Regulations 2004 and their Scottish counterparts adopt similar...

Electronic disclosure glossary: ESI, AI and search terminology for CPR 31/PD 31B and the Business & Property Courts Disclosure Scheme (England and Wales)

Published by a LexisNexis Dispute Resolution expert

Practice notes

Read this Practice Note alongside Practice Note: Disclosure under CPR 31—introduction, or the Disclosure Scheme (Business & Property Courts)—overview, according to the disclosure scheme operating in the court where the claim is being pursued (for further guidance, see: Which disclosure rules apply to my claim—flowchart?).

Term Definition

Artificial Intelligence (AI) — a technological means that imitates human thought processes, producing either extractive (summarising) or generative (creating) outcomes.
back-up tapes — tapes holding preserved data; termed ‘back-up’ because information is copied to them and kept as a contingency. Also covers any method where data is routinely captured and stored separately for risk management. See also incremental back-ups below.
bit and byte — electronic information is measured in bits, indicating storage space. 8 bits = 1 byte. 1 byte approximates to one text character; 1024 bytes = 1 kilobyte.
clustering — a search approach that automatically finds similar documents and arranges them into groups.
concept searches — a search method that uses algorithms to connect underlying associations between words within documents...

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Web page updated on 21/05/2026

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