This thesis explores the implementation of a Manufacturing Execution System (MES) within a highly specialized and handcrafted production environment. The first part provides an overview of the evolution of Industry 4.0, focusing on the main digital actors that enable smart manufacturing: Enterprise Resource Planning (ERP) systems, which manage business processes; Advanced Planning and Scheduling (APS) systems, which optimize production planning; and Manufacturing Execution Systems (MES), which bridge the gap between enterprise management and shop floor operations. Traditionally, MES systems are implemented in automated industries, where data collection is facilitated by machinery that continuously reports production parameters such as cycle times, set-ups, and machine downtimes.