Generally, before optimizing the scheme, first write the concept, then build the model, then find the problem according to the modeling analysis and data analysis, and finally write the optimization scheme.

Modeling is usually put forward by some departments according to actual needs, and perhaps those departments have provided financial support. At this time, the paper has the purpose of reporting to specific departments, but even in other cases, it is necessary to make a comprehensive and systematic summary of the whole process of modeling, so that relevant technicians (marking staff during the competition) can believe the rationality of the model assumptions and understand the applicability of the methods used in the process of model establishment, thus having confidence in the data and conclusions of the model. Of course, a good paper is based on the scientific nature of the model established by the author. Secondly, we should pay attention to the organization of the paper.