1. First of all, we must determine the research objects and problems, and make clear the theme and research direction. It is necessary to collect and sort out empirical materials related to the research object, including actual cases, questionnaires, interview records, observation records, etc.

2. Secondly, analyze and extract features from empirical materials, and analyze and extract features from collected empirical materials by statistical analysis, text analysis, network analysis and other methods.

3. Finally, summarize and form a conclusion, and summarize and form a conclusion according to the characteristics of the experience, which can be presented in the form of data tables, story narration, chart analysis, etc. Extracting features from experience is a process that requires experience and skills, and needs certain experience and methodological support.