The preface is a chapter before the text. The writing of the preface should include the research summary, and put forward the research scope and viewpoints of my thesis.

1. Research Summary

Writing a graduation thesis must have a research summary, also called a summary report. Research summary is to sort out the historical position and development trend of the research object in this paper, and evaluate these studies to determine the logical starting point of their own research, and discuss what they will do on the basis of other people's research.

In the reviewed dissertations, the main problems are: too brief, lack of analysis and evaluation, some just list other people's research works without any analysis, some research reviews account for half of the whole thesis, and some replace their own views with reviews.

2. Research point of view

In the preface, in addition to writing a research summary, you should also state your own research viewpoint, what problems you will discuss in this article, what opinions you will put forward, what is the scope of your discussion on this issue, and how to use this viewpoint, so that your viewpoint can be clear and focused, and others can understand it, avoiding the ambiguity of discussion scope and keywords. Different from the analysis of academic journals, academic papers generally follow two procedures: one is logical analysis procedure: analysis and synthesis, and the other is systematic synthesis procedure: comprehensive analysis and synthesis I think it is best to adopt systematic synthesis procedure, which has the function of constructing strategic position and outlining from a strategic perspective. The former synthesis procedure is the preface, which takes the research object as a synthesis and makes an overall description and analysis of its own views on the basis of synthesis. Each part is discussed by chapter, and the results of each analysis are fed back to the next level of synthesis. The following synthesis is in the conclusion part of the paper, summarizing the research of the whole paper and summarizing my own views.