The doctoral thesis will consist of an original research work prepared by the doctoral student. The doctoral thesis may be written and defended in the languages customary for scientific communication in its field of knowledge.

Thesis by Compendium of Publications.

The doctoral thesis may consist of a regrouping of research works published by the doctoral student in relevant scientific media within their field of knowledge into a single unifying document. It must be comprised of a minimum of three published contributions or contributions accepted for publication, of which at least two must be in media deemed suitable according to the evaluation criteria published by the CNEAI in relation to the scientific field to which the research line of the doctoral thesis belongs (Arts. 62, 63, 64 of the Doctoral Studies Regulations)

Theses Subject to Confidentiality Procedures.

In exceptional circumstances determined by the program's academic committee, such as, among others, the participation of companies in the program or in EIDUS, the existence of confidentiality agreements with companies, or the possibility of generating patents related to the thesis content, the doctoral student may request the Executive Committee of EIDUS to apply the confidentiality procedure in the processing of the doctoral thesis, which avoids the public exposure of protected results or results susceptible to protection  (Arts. 65, 66, 67 of the Doctoral Studies Regulations)

Theses Eligible for the International Doctorate Mention on the Doctoral Degree.

The doctoral degree may include on its front page the mention «International Doctorate», provided that the circumstances regulated in Art. 68.1 of the Doctoral Studies Regulations are met, and that the doctoral student must accredit these circumstances at the time of thesis submission, including that at least two of the expert reviewers of the thesis belong to a non-Spanish higher education institution or research institute.

Theses Eligible for the Industrial Doctorate Mention.

The front page of the Doctoral Degree may include the mention «Industrial Doctorate», provided that the circumstances regulated in Art. 69 of the Doctoral Regulations are met, and that the doctoral student must accredit these circumstances at the time of thesis submission.

• More information: What is an Industrial Doctorate? Advantages and annual informational workshops.

Theses under International Co-supervision.

The doctoral degree will include on its front page the endorsement «Thesis under co-supervision with University U», provided that the following circumstances regulated in Art. 70 of the Doctoral Regulations are met, including that an agreement has been signed between the University of Seville and a foreign university within the framework of which the doctoral thesis is carried out, and that it will be supervised by two or more doctors, of whom at least one belongs to the University of Seville and another to the foreign university (Art. 70 and 71 of the Doctoral Studies Regulations)