--- title: "What Is eDiscovery? Definition and Stages" description: "What is ediscovery? A plain definition, how it differs from ordinary discovery, the stages, where the cost sits and where AI helps. US practice only." url: https://nexumautomations.com/glossary/e-discovery updated: 2026-10-31 publisher: Nexum Automations, an AI consulting firm --- > Nexum Automations is an AI consulting firm that builds what it recommends. It finds where AI pays off in a company, builds it on the tools the team already uses and stays until it is live and working. Glossary # What is eDiscovery? Explained A plain definition of eDiscovery, how it works step by step, who does what, where the cost sits and where AI helps while people decide. Last reviewed October 30, 2026 Definition eDiscovery eDiscovery is the part of a US lawsuit or investigation where each side finds, preserves, collects, reviews and hands over electronically stored information as evidence. Email, chat, documents and databases all count. That is what is ediscovery in one sentence. **In short:** Finding and sharing digital evidence in a legal matter. Our data ## What buyers see in this search The first page of Google for "what is ediscovery", counted by type of result. | | Results | | ---------------------------------------------------- | --------------------------------------- | | Articles by companies that sell a product or service | 7 of 8 | | Social and blog-platform posts | 1 of 8 | | Titles that answer this exact search | 8 of 8 | | Google features on the page | An AI Overview, People also ask, videos | The 8 organic results on the first page of Google, United States, desktop, measured with DataForSEO on October 29, 2026\. Types only: no company or product is named. ## What is eDiscovery in plain words * Email Messages and attachments tied to the matter. * Chat Team messages and threads. * Documents Contracts, files and shared drafts. * Databases Records kept in business systems. In US civil cases, the Federal Rules of Civil Procedure let each side ask the other for relevant information. The Cornell Legal Information Institute publishes those rules, including the one that covers electronically stored information. When people ask what is e discovery, this is it: ordinary discovery, applied to digital records. Electronic discovery is the same idea, just a longer name. This page is general information, not legal advice. Your lawyer decides what applies to your matter. ## How eDiscovery differs from ordinary discovery Ordinary discovery * Paper files and notes * Witness statements * Smaller volumes eDiscovery * Electronic records only * Spread across many systems * Needs careful preservation Ordinary discovery covers any evidence one side requests from the other, including paper files and witness statements. eDiscovery covers only the electronic part. Digital records change the work. There is far more of it, it sits in many places, and it can be altered or deleted without anyone noticing. That is why specialized expertise is needed at several stages, as one litigation-support firm notes. It also differs from a plain data search. Every step is about evidence, so what you keep, how you collect it and what you hand over all need a record. ## The stages and who does each 1. Preserve Lawyers and IT stop routine deletion. 2. Collect IT or a provider gathers the data. 3. Review Lawyers judge relevance and privilege. 4. Produce The final set goes to the other side. Most matters follow the same path, with different people at each step. Lawyers decide what must be kept and what is relevant. IT staff or an outside provider usually handle the technical collection. Lawyers then review the results and decide what to hand over. ## Where the cost sits and where AI helps AI can help with * Sorting large document sets * Surfacing likely-relevant files * Speeding up first-pass review People still decide * Which files are relevant * Whether a file is privileged * What gets handed over Review is usually the heavy part, because lawyers must read very large document sets. No source I could check here gives a reliable share of spending, so ask your counsel for a budget breakdown. AI is mostly used to sort large sets so people read the likely-relevant documents first. People still decide relevance and privilege, a setup known as [human in the loop](https://nexumautomations.com/glossary/human-in-the-loop). The legal rules point the same way. The ABA says a lawyer must weigh duties of competence and client confidentiality when using generative AI. California's State Bar says a lawyer remains fully responsible for AI-assisted work. Even so, the ABA's 2024 survey found about 30% of responding lawyers use AI, and three-quarters of the hesitant cited hallucinations. For the wider picture, see our [AI in legal guide](https://nexumautomations.com/guides/ai-in-legal). ## How eDiscovery differs from close terms * Discovery The full process, paper and digital. * Legal hold The order to stop deleting. * Data retention Your normal schedule for keeping records. * Document review One stage inside eDiscovery. Discovery is the wider legal process. eDiscovery is its electronic part. A legal hold is only the first step, the order to preserve. Data retention is your own ordinary schedule for keeping records, which a legal hold overrides. Document review is one stage inside eDiscovery, not the whole thing. For the broader legal context, see [legal AI work](https://nexumautomations.com/industries/legal). FAQ ## eDiscovery questions * ### What is the difference between discovery and eDiscovery? Discovery is the legal process of exchanging evidence. eDiscovery is the same process applied to electronic records like email, chat and files. Paper and testimony stay in ordinary discovery. * ### What comes after discovery in a lawsuit? After the exchange of evidence, a case may move to motions, settlement talks or trial. The path depends on the court and the matter, so your lawyer can tell you what is next. * ### How much does eDiscovery cost? Cost depends on data volume, number of custodians and how much needs review. Review by lawyers is usually the largest part. Ask your counsel for an estimate by stage. * ### What are the four types of discovery? People often list interrogatories, requests for production, depositions and requests for admission. eDiscovery usually sits inside requests for production. Your lawyer can confirm how that works in your court. * ### Does AI replace lawyers in eDiscovery? No. AI helps sort large sets, but lawyers decide relevance and privilege and stay responsible for the work. The Bureau of Labor Statistics expects the number of lawyers to rise 5 percent between 2025 and 2035\. For the full question, see [will AI replace lawyers](https://nexumautomations.com/guides/will-ai-replace-lawyers). --- Source: https://nexumautomations.com/glossary/e-discovery Free AI diagnosis (30-minute call): https://nexumautomations.com/#book - Services: https://nexumautomations.com/services - Guides: https://nexumautomations.com/guides