You can provide an overview of the thesis in an executive summary that summarizes the contents of the thesis. The executive summary is written after you've completed the entire thesis. Completing the thesis first enables you to incorporate everything you've covered in the research. The first sentence of the executive summary identifies the research problem. It also provides details clearly identifying the problem that is being addressed in the thesis, its intellectual context and its industrial application.
The overview gives the introduction of the thesis. It identifies the problem and also signals the results to whoever is reading the thesis. It then moves into a detailed explication of the problem, its importance and its relevance to the study. The overview should provide the reader with information on what to expect as he continues with the project.
The thesis overview also provides the reader with background on the research. In this section, you must show that you understand how the research fits into and contributes to the context of wider research in the field. Here, you cite materials from previous works in order to show the relevance of your work. Summarize major works and connect them to what you are investigating. Cite referenced materials as well, so as to differentiate your views from those of other people.
A thesis overview provides the conclusion of the research, summarizing and discussing the results and their implications. This section also provides recommendations and what needs to be done in future. It delineates the challenges that need to be covered in the future, in relation to the research you've been undertaking. The overview can also provide appendices, if there are any lengthy materials that the reader will need to refer to while going through the research paper.