A preface in a dissertation is an introductory section that appears before the main body of the dissertation. It is typically a brief statement that provides context and background information for the research presented in the dissertation.
A preface is a place where the author can acknowledge the contributions and support of others who helped in the research process, as well as explain the purpose and scope of the project. It may also include a statement of the author’s motivation for undertaking the research or a discussion of any challenges or limitations encountered during the research process.