Examples
Worked examples
- Is an instance
A PhD candidate uploads a PDF of the final dissertation, plus supplementary datasets, to their university's institutional repository as the last graduation requirement; the repository assigns a persistent URL and, increasingly, a DOI.
- Is an instance
A completed master's thesis is deposited in a university ETD system whose metadata is harvested, via ETD-MS, into NDLTD's international union catalog, making it discoverable outside the depositing institution's own repository search.
Counter-examples
Looks similar, but isn't
- Not an instance
A bound paper dissertation held only in a university's physical library stacks, deposited before that institution adopted electronic submission — a real dissertation, but not an ETD in the digital-deposit sense this term describes.
- Not an instance
A working paper or preprint posted to a subject repository: it is digital, but it is not a thesis or dissertation and was not produced to satisfy a degree requirement, so it does not meet the ETD definition.
Editorial commentary
An Electronic Thesis or Dissertation (ETD) is a thesis or dissertation that is prepared, submitted, and archived in digital form — typically a PDF, together with any supplementary datasets or media — rather than only as a bound print copy held on a library shelf. The term describes a deposit model, not a different kind of research document: an ETD and a print dissertation can report identical research; what changes is how the work is submitted, preserved, discovered, and made accessible after the degree is conferred.
Digital deposit is now the default at most research universities worldwide, and at a growing number it is the only accepted submission format — a candidate who does not complete ETD deposit to specification simply has not satisfied the graduation requirement, regardless of how the defense itself went.
NDLTD and the ETD-MS metadata standard
The Networked Digital Library of Theses and Dissertations (NDLTD) is the major international body coordinating ETD practice. It began in 1996 as the National Digital Library of Theses and Dissertations, a Virginia Tech-led initiative backed by U.S. Department of Education grant funding, and was renamed “Networked” as participation expanded beyond the United States. NDLTD today describes itself as an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of ETDs, and it runs the annual ETD Symposium as a venue for institutions and vendors working on ETD programs.
NDLTD’s practical contribution to interoperability is ETD-MS (“An Interoperability Metadata Standard for Electronic Theses and Dissertations,” current version 1.1), a lean set of metadata elements — built on Dublin Core — that member institutions can map their local repository metadata onto. Because ETD-MS gives participating repositories a shared metadata “handshake,” a dissertation deposited at one university can be harvested into NDLTD’s union catalog and discovered without a researcher needing to know, or search, that specific institution’s repository directly.
Institutional deposit requirements
Most graduate schools now require ETD deposit in the university’s institutional repository as a condition of degree conferral, alongside (or in place of) any remaining print-copy requirement. In the United States, many institutions also route a copy through ProQuest Dissertations & Theses Global, a commercial aggregator widely used as a discovery and full-text access point alongside NDLTD’s own catalog and the repository’s public listing. Repositories increasingly mint a DOI for the deposited work through DataCite — DataCite issues DOIs for research outputs an organization is directly responsible for hosting, including theses and dissertations, not only journal articles — and candidates are commonly asked to supply an ORCID iD before deposit so the record links unambiguously to their later publication history. Preferred file formats increasingly follow archival standards such as PDF/A (ISO 19005) rather than a general-purpose PDF, since PDF/A is designed specifically for long-term digital preservation.
Embargoes: protecting publication and patent rights
Open deposit is the default expectation, but a candidate can typically request an embargo — a defined period during which the full text stays restricted while the metadata record remains discoverable. The two most common practical reasons are protecting a pending patent filing and preserving the ability to publish findings in a journal before they are freely available elsewhere. Because a public ETD deposit can function as a public disclosure, timing it against a patent application matters: disclosing an invention before filing can compromise novelty, so a candidate with patentable material in their dissertation should coordinate deposit timing with their institution’s technology transfer office rather than assume the embargo process alone resolves the risk — see Prior Art for how public disclosure interacts with patent novelty and filing deadlines.
There is no single standard embargo length across institutions. Real graduate-school policies range from around six months to several years, and grounds for approval (patent-pending status, a publisher’s own embargo requirement, sensitive or third-party data, personal safety) differ by school — a candidate should check their own institution’s specific policy rather than assume a figure that applies elsewhere applies to them.
How this differs from the underlying document
“ETD” describes the deposit format and infrastructure a thesis or dissertation moves through, not the document’s academic content or degree level — see CASRAI’s guide on what a dissertation is for the document itself, and the dissertation vs. thesis comparison for how “thesis” and “dissertation” terminology diverges between the US/Canada and the UK/Commonwealth. A thesis and a dissertation can each be deposited as an ETD; the term applies to both.
References
- NDLTD, “Mission, Goals, and History” and ETD-ms v1.1: An Interoperability Metadata Standard for Electronic Theses and Dissertations (ndltd.org).
- DataCite best-practices guidance on DOI assignment for theses, dissertations, and other grey literature (datacite.org).
Also known as
ETD · electronic thesis or dissertation · e-thesis · digital dissertation
Machine-readable encodings
Use in your systems
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