Briefly describe the advantages and disadvantages of empirical methods.

1. Advantages The empirical method is simple, can make up for the lack of knowledge and experience, and has the advantages of convenience, practicality and difficulty in omission.

2. The shortcoming empirical method is limited by the knowledge, experience and information possessed by appraisers, and there are omissions. In order to make up for the lack of personal judgment, expert meetings are often used to inspire each other, exchange opinions and brainstorm ideas, so as to make the identification of dangerous and harmful factors more detailed and specific.