*3.1. Problem Description*

The study described below was implemented in an industrial shoe company in the state of Hidalgo, Mexico. In the moment that we did the intervention in the company, they had a Make to Stock Model for doing business. In the industrialized society of mass production and marketing, this forecast needs standardization and efficient business management such as cost reduction and a fast response to costumers. Moreover, the company was trying to expand its market. For this reason, it was necessary to increment its productivity.

In this company, there were two decorating lines. Specifically, Line 1 presented productivity problems at the time of the study. It was necessary to work extra hours and still did not achieve the established production goal. Through observation, it was perceived that it was because the activities did not follow the natural flow of the process. However, a methodology was followed to analyze the problem. Reengineering served to conceptualize the problem and present the proposal, and the simulation helped validate it.

The proposal of this work is practical. It was carried out for the improvement of the processes and allowed a complete analysis of the current process with its respective deficiencies through reengineering, which were considered to make a change. Once the process improvement was selected, a proposal was made. This approach was tested through the simulation. Until the start of this

research, any work focused on reengineering was found in an industrial footwear factory supported by simulation. This fusion of methodologies can be used in companies in another sector, especially small and medium-sized companies, with their respective adaptations.
