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About DissOnline

The German National Library houses the largest national collection of online dissertations in Europe. We have been collecting online dissertations and theses since 1998. Since then, the collection has grown to more than 284,000 documents (as of November 2020).

Since these activities began under the aegis of DissOnline more than 20 years ago, electronic publishing has become a part of everyday university life. This is due to the close cooperation between universities, their libraries and computer centres, and representatives of academia as well as the long-standing support provided through projects funded by the German Research Foundation ( DFG ).

The DissOnline project was brought to a successful, sustainable conclusion. Stakeholders whose initiative had supported DissOnline then became free to transfer their commitment to other areas. In June 2012, the DissOnline advisory committee therefore decided to integrate the functions and information on the website www.dissonline.de into the German National Library’s services. This is particularly relevant in terms of the deposit of works with the German National Library. The extended metadata format XMetaDissPlus enables all types of publications and documents available in subject-specific and institutional repositories and on university servers to be deposited in just one fully automated transaction.

Deposit information

The DissOnline portal is also integrated into the German National Library's catalogue as a search option. This means that online dissertations are listed as a component of the German National Library’s collection alongside traditional printed dissertations, other online university publications and academic literature. Our catalogue offers a wide variety of search options that are constantly being developed and optimised further. You will find an explanation of all the available search options here:

Guide to searching dissertations and theses in the German National Library’s catalogue (only available in German)

In order to enhance the international visibility of the collection, the metadata for all German online dissertations is continually delivered to DART , the European portal for online dissertations. NDLTD : Networked Digital Library of Theses and Dissertations is committed to the promotion of electronic publishing in the academic sector beyond Europe. The International Symposium on Electronic Theses and Dissertations (ETD) takes place every year.

Statistical information

Online university publications have been collected, catalogued and archived at the German National Library since 1998. The illustration shows how the percentage of online publications has developed over the years since this work began. Here it must be considered that although dissertations are subject to a mandatory publication obligation and an obligation to be placed on deposit with the German National Library, only an approximate impression of doctoral and publication activities in Germany can be given.

As the statistics refer to the year in which the publication was released rather than the year in which it was deposited, it is quite possible that figures may rise in succeeding years. This applies in particular to the most recent full year.

The DissOnline projects

• 1998–2000 Dissertations Online
• 2003–2004 Establishment of a coordinating body for online university publications
• 2005–2007 DissOnline Tutor
• 2005–2008 Establishment of a portal for online university publications

The intensive cooperation between all partners and sponsors also made it possible to start collecting dissertations and theses on a voluntary basis in 1998, eight years before the amendment to the Law Regarding the German National Library and the provision stipulating the mandatory deposit of online publications.

Last changes: 08.03.2021 Short-URL: https://www.dnb.de/dissonline

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• Knowledge Base
• Dissertation

What Is a Dissertation? | 5 Essential Questions to Get Started

Published on 26 March 2020 by Jack Caulfield . Revised on 5 May 2022.

A dissertation is a large research project undertaken at the end of a degree. It involves in-depth consideration of a problem or question chosen by the student. It is usually the largest (and final) piece of written work produced during a degree.

The length and structure of a dissertation vary widely depending on the level and field of study. However, there are some key questions that can help you understand the requirements and get started on your dissertation project.

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Table of contents

When and why do you have to write a dissertation, who will supervise your dissertation, what type of research will you do, how should your dissertation be structured, what formatting and referencing rules do you have to follow, frequently asked questions about dissertations.

A dissertation, sometimes called a thesis, comes at the end of an undergraduate or postgraduate degree. It is a larger project than the other essays you’ve written, requiring a higher word count and a greater depth of research.

You’ll generally work on your dissertation during the final year of your degree, over a longer period than you would take for a standard essay . For example, the dissertation might be your main focus for the last six months of your degree.

Why is the dissertation important?

The dissertation is a test of your capacity for independent research. You are given a lot of autonomy in writing your dissertation: you come up with your own ideas, conduct your own research, and write and structure the text by yourself.

This means that it is an important preparation for your future, whether you continue in academia or not: it teaches you to manage your own time, generate original ideas, and work independently.

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During the planning and writing of your dissertation, you’ll work with a supervisor from your department. The supervisor’s job is to give you feedback and advice throughout the process.

The dissertation supervisor is often assigned by the department, but you might be allowed to indicate preferences or approach potential supervisors. If so, try to pick someone who is familiar with your chosen topic, whom you get along with on a personal level, and whose feedback you’ve found useful in the past.

How will your supervisor help you?

Your supervisor is there to guide you through the dissertation project, but you’re still working independently. They can give feedback on your ideas, but not come up with ideas for you.

You may need to take the initiative to request an initial meeting with your supervisor. Then you can plan out your future meetings and set reasonable deadlines for things like completion of data collection, a structure outline, a first chapter, a first draft, and so on.

Make sure to prepare in advance for your meetings. Formulate your ideas as fully as you can, and determine where exactly you’re having difficulties so you can ask your supervisor for specific advice.

Your approach to your dissertation will vary depending on your field of study. The first thing to consider is whether you will do empirical research , which involves collecting original data, or non-empirical research , which involves analysing sources.

Empirical dissertations (sciences)

An empirical dissertation focuses on collecting and analysing original data. You’ll usually write this type of dissertation if you are studying a subject in the sciences or social sciences.

• What are airline workers’ attitudes towards the challenges posed for their industry by climate change?
• How effective is cognitive behavioural therapy in treating depression in young adults?
• What are the short-term health effects of switching from smoking cigarettes to e-cigarettes?

There are many different empirical research methods you can use to answer these questions – for example, experiments , observations, surveys , and interviews.

When doing empirical research, you need to consider things like the variables you will investigate, the reliability and validity of your measurements, and your sampling method . The aim is to produce robust, reproducible scientific knowledge.

Non-empirical dissertations (arts and humanities)

A non-empirical dissertation works with existing research or other texts, presenting original analysis, critique and argumentation, but no original data. This approach is typical of arts and humanities subjects.

• What attitudes did commentators in the British press take towards the French Revolution in 1789–1792?
• How do the themes of gender and inheritance intersect in Shakespeare’s Macbeth ?
• How did Plato’s Republic and Thomas More’s Utopia influence nineteenth century utopian socialist thought?

The first steps in this type of dissertation are to decide on your topic and begin collecting your primary and secondary sources .

Primary sources are the direct objects of your research. They give you first-hand evidence about your subject. Examples of primary sources include novels, artworks and historical documents.

Secondary sources provide information that informs your analysis. They describe, interpret, or evaluate information from primary sources. For example, you might consider previous analyses of the novel or author you are working on, or theoretical texts that you plan to apply to your primary sources.

Dissertations are divided into chapters and sections. Empirical dissertations usually follow a standard structure, while non-empirical dissertations are more flexible.

Structure of an empirical dissertation

Empirical dissertations generally include these chapters:

• Introduction : An explanation of your topic and the research question(s) you want to answer.
• Literature review : A survey and evaluation of previous research on your topic.
• Methodology : An explanation of how you collected and analysed your data.
• Results : A brief description of what you found.
• Discussion : Interpretation of what these results reveal.
• Conclusion : Answers to your research question(s) and summary of what your findings contribute to knowledge in your field.

Sometimes the order or naming of chapters might be slightly different, but all of the above information must be included in order to produce thorough, valid scientific research.

Other dissertation structures

If your dissertation doesn’t involve data collection, your structure is more flexible. You can think of it like an extended essay – the text should be logically organised in a way that serves your argument:

• Introduction: An explanation of your topic and the question(s) you want to answer.
• Main body: The development of your analysis, usually divided into 2–4 chapters.
• Conclusion: Answers to your research question(s) and summary of what your analysis contributes to knowledge in your field.

The chapters of the main body can be organised around different themes, time periods, or texts. Below you can see some example structures for dissertations in different subjects.

• Political philosophy

This example, on the topic of the British press’s coverage of the French Revolution, shows how you might structure each chapter around a specific theme.

This example, on the topic of Plato’s and More’s influences on utopian socialist thought, shows a different approach to dividing the chapters by theme.

This example, a master’s dissertation on the topic of how writers respond to persecution, shows how you can also use section headings within each chapter. Each of the three chapters deals with a specific text, while the sections are organised thematically.

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Like other academic texts, it’s important that your dissertation follows the formatting guidelines set out by your university. You can lose marks unnecessarily over mistakes, so it’s worth taking the time to get all these elements right.

Formatting guidelines concern things like:

• line spacing
• page numbers
• punctuation
• title pages
• presentation of tables and figures

If you’re unsure about the formatting requirements, check with your supervisor or department. You can lose marks unnecessarily over mistakes, so it’s worth taking the time to get all these elements right.

How will you reference your sources?

Referencing means properly listing the sources you cite and refer to in your dissertation, so that the reader can find them. This avoids plagiarism by acknowledging where you’ve used the work of others.

Keep track of everything you read as you prepare your dissertation. The key information to note down for a reference is:

• The publication date
• Page numbers for the parts you refer to (especially when using direct quotes)

Different referencing styles each have their own specific rules for how to reference. The most commonly used styles in UK universities are listed below.

You can use the free APA Reference Generator to automatically create and store your references.

APA Reference Generator

The words ‘ dissertation ’ and ‘thesis’ both refer to a large written research project undertaken to complete a degree, but they are used differently depending on the country:

• In the UK, you write a dissertation at the end of a bachelor’s or master’s degree, and you write a thesis to complete a PhD.
• In the US, it’s the other way around: you may write a thesis at the end of a bachelor’s or master’s degree, and you write a dissertation to complete a PhD.

The main difference is in terms of scale – a dissertation is usually much longer than the other essays you complete during your degree.

Another key difference is that you are given much more independence when working on a dissertation. You choose your own dissertation topic , and you have to conduct the research and write the dissertation yourself (with some assistance from your supervisor).

Dissertation word counts vary widely across different fields, institutions, and levels of education:

• An undergraduate dissertation is typically 8,000–15,000 words
• A master’s dissertation is typically 12,000–50,000 words
• A PhD thesis is typically book-length: 70,000–100,000 words

However, none of these are strict guidelines – your word count may be lower or higher than the numbers stated here. Always check the guidelines provided by your university to determine how long your own dissertation should be.

At the bachelor’s and master’s levels, the dissertation is usually the main focus of your final year. You might work on it (alongside other classes) for the entirety of the final year, or for the last six months. This includes formulating an idea, doing the research, and writing up.

A PhD thesis takes a longer time, as the thesis is the main focus of the degree. A PhD thesis might be being formulated and worked on for the whole four years of the degree program. The writing process alone can take around 18 months.

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If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

Caulfield, J. (2022, May 05). What Is a Dissertation? | 5 Essential Questions to Get Started. Scribbr. Retrieved 21 May 2024, from https://www.scribbr.co.uk/thesis-dissertation/what-is-a-dissertation/

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Dissertation search tools available at Yale

• Orbis (Yale dissertations only) Orbis holds records for all Yale dissertations for which microfilm copies exist, i.e. all dissertations completed in departments of the Graduate School since 1965, plus select dissertations completed in departments of the Graduate School between 1892 & 1965. Yale dissertations can be located in Orbis by: (1) Entering the author / title in a Simple Search (2) Using the terms “dissertation” or “thesis” and words known to be in the bibliographic record in a Keyword search. more... less... If you do not locate a Yale dissertation in Orbis, check the card catalog at Manuscripts and Archives. Except for some early dissertations that are not available, all Yale dissertations are held at Manuscripts and Archives.
• ProQuest Dissertations & Theses This database makes nearly every dissertation ever filed in the United States available in PDF format. Not all dissertations are available, however, as authors with dissertations under contract with a press are sometimes encouraged not to make their dissertations freely available. In these cases you can at least read an abstract. Note that you can search by school, department, and adviser.

From European institutions

• DART-Europe The European portal for finding electronic theses and dissertations. DART-Europe is a partnership of research libraries and library consortia who are working together to improve global access to European research theses.
• Deutsche Nationalbibliothek German dissertations since 1998 are comprehensively collected by the National Library of Germany, so search its online catalog by clicking on the link above.
• Dissonline Searches electronic university publications held by the Deutsche Nationalbibliothek, including dissertations and "Habilitationen".
• Electronic Theses Online Service (EThOS) EThOS offers free access, in a secure format, to the full text of electronically stored UK theses--a rich and vast body of knowledge.
• Index to Theses A Comprehensive Listing of Theses with Abstracts Accepted for Higher Degrees by Universities in Great Britain and Ireland since 1716. Abstracts are available from many theses since 1970 and for all since 1986.
• Österreichische Dissertationsdatenbank This database references over 55,000 dissertations and theses held at Austrian universities; select dissertations are available online.

From international institutions

• CRL Center for Research Libraries Foreign Doctoral Dissertations Holds 800,000 dissertations from universities outside the U.S. and Canada. However, only 20,000 of these are cataloged in the database. If you know the exact title of a dissertation and do not find it in the database, CRL recommends searching the CRL Catalog. If the title does not appear in the database or the catalog, contact CRL directly to inquire if it is held. CRL continues to acquire about 5,000 titles per year from major universities.
• Networked Digital Library of Theses & Dissertations (NDLTD) The NDLTD is an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of electronic theses and dissertations (ETDs). The NDLTD Catalog contains more than one million records of electronic theses and dissertations. For students and researchers, the Union Catalog makes individual collections of NDLTD member institutions and consortia appear as one seamless digital library of ETDs.
• The Universal Index of Doctoral Dissertations in Progress This site holds a database of voluntarily-registered, author-identified doctoral dissertations in progress around the world. Its goal is to avoid duplications in doctoral dissertations, create the ultimate meeting place for researchers, and allow for interaction between them. Bear in mind, though, that only dissertations which have been registered by their authors can be found in the database. Registration and access to the database are free.
• Theses Canada This is your central access point for Canadian theses. From here you will be able to: - search AMICUS, Canada's national online catalog, for bibliographic records of all theses in Library and Archives Canada's theses collection; - access & search the full text electronic versions of numerous Canadian theses and dissertations; - find out everything you need to know about Theses Canada, including how to find a thesis, information on copyright, etc.
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Definition of dissertation noun from the Oxford Advanced Learner's Dictionary

• dissertation
• He wrote his Master's dissertation on rats.
• Students can either do a dissertation or take part in a practical project.
• hall of residence
• Candidates are required to present a dissertation of between 8 000 and 12 000 words.
• She is writing her dissertation on the history of the Knights Templar.
• dissertation on

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