The preface in the paper can also be called introduction, which is usually placed at the beginning of the paper, mainly to briefly describe the research reasons of the paper. Preface generally plays the role of connecting the preceding with the following, connecting the full text, and it is not necessary to discuss when writing the research content. The preface should be short and concise, highlighting the theme of the paper.
Matters needing attention in preface writing
First of all, we should pay attention to the content of the preface, be short and pithy, don't describe it too much, just highlight the key points of the paper. If the total number of words in the paper is 10000, then the number of words in the preface should be kept between 300 and 400. The preface only serves as a guide, so there is no need to discuss it, let alone describe it in detail.
The introduction is mainly to write the reason and purpose of writing this paper, and also to compare some achievements of predecessors in this research field with their own. Then it briefly describes some methods, processes, arguments and arguments studied in this paper. Finally, write down the research results and significance of the paper.