Manufacturing Description Language for Process Control in Industry 4.0.

In factories, the assembly of products or components by operators is a complex task that is not free of recurring problems. In this process, operators often make mistakes that can lead to defective products. Therefore, they need to be inspected later to verify their correct assembly. The main problems are caused by several reasons, including high employee turnover due to a lack of experience in manufacturing specific products or confusion of instructions for similar components. In this paper, a novel structured language aimed to describe the required actions to manufacture a product in industrial assembly environments is presented. The main contribution is to provide a formal language that can help in the future to an automatic system can verify through visual control, whether the actions performed by the operator are carried out in accordance with the standard described by this language. It will allow to minimize the negative impact of errors during assembly.