1, comprehensive index method:

The comprehensive index method is to synthesize first and then compare the average. Its greatest advantage lies in that it can not only reflect the overall change direction and degree of complex economic phenomena, but also accurately and quantitatively explain the actual economic effects caused by the change of phenomena. But complete raw materials are needed. The average index method is to compare first and then average comprehensively. Although it can't directly explain the absolute effect of phenomenon change, it is more flexible and convenient for practical work than the comprehensive index method.

2.TOPSIS method:

Its basic principle is to sort the evaluation objects by detecting the distance between them and the optimal solution and the worst solution. If the evaluation object is closest to the optimal solution and farthest from the worst solution, it is optimal. Otherwise, it is not optimal. Among them, each index value of the optimal solution reaches the optimal value of each evaluation index. Each index value of the worst solution reaches the worst value of each evaluation index.

3. Analytic Hierarchy Process:

Using analytic hierarchy process has many advantages, the most important of which is simplicity. Analytic Hierarchy Process (AHP) is not only suitable for situations with uncertainty and subjective information, but also allows the use of experience, insight and intuition in a logical way. Perhaps the greatest advantage of AHP is that it puts forward the hierarchy itself, which enables buyers to seriously consider and measure the relative importance of indicators.

In addition, there are RSR method, fuzzy comprehensive evaluation method and grey system method, which have their own characteristics and advantages and disadvantages.

Extended data:

General steps of comprehensive evaluation

1, according to the purpose of evaluation, choose appropriate evaluation indicators, which are very representative, distinctive and often measurable. The selection of evaluation indicators is mainly based on professional knowledge, that is, according to relevant professional theories and practices, the influence of each evaluation indicator on the results is analyzed, and those indicators that are representative, certain, different and independent are selected to form an evaluation index system.

2, according to the evaluation purpose, determine the relative importance of evaluation indicators in evaluating something, or the weight of each indicator;

3. Reasonably determine the evaluation grade and boundary of each single index;

4. Select the appropriate comprehensive evaluation method according to the evaluation purpose and data characteristics, and establish a comprehensive evaluation model according to historical data;

5. Determine the grade and quantitative limit of multi-index comprehensive evaluation. In the application practice of comprehensive evaluation of similar things, the selected evaluation model is tested and constantly revised and supplemented to make it scientific, practical and advanced, and then popularized.

References:

Baidu Encyclopedia-Comprehensive Index Method

References:

Baidu encyclopedia -—TOPSIS method

References:

Baidu encyclopedia-analytic hierarchy process

References:

Baidu Encyclopedia-Mathematical Modeling