The merits of the solution from the law referred to TOPSIS, is a comprehensive evaluation method, using the original data reflects the gap between the evaluation program
Step away from the merits of the solution method is usually:
- First the original data to make the needle forward processing, the forward of the matrix to obtain
- Then the forward of the matrix standardized to eliminate the effect of each index dimensionless
- To find the optimal solution and the worst programs in limited scenarios, calculate the distance between each evaluation object and optimal Worst Scheme
For example: Please basis of the following four students each student's performance evaluation ratings
| Full name | Achievement |
| Hsiao Ming | 88 |
| Wang | 60 |
| Zhang | 74 |
| Kodaka | 99 |
The obvious approach is: sort in descending order according to the results, the following table:
| Full name | Achievement | Ranking |
| Hsiao Ming | 88 | 2 |
| Wang | 60 | 4 |
| principal | 74 | 3 |
| Kodaka | 99 | 1 |
Obviously, this does not help, we hope more equitable ranking and evaluation.