Industry 4.0 refers to the fourth industrial revolution involving the integration of advanced manufacturing and digital technologies. The document discusses nine pillars that form the building blocks of Industry 4.0: big data and analytics, autonomous robots, simulation, system integration, the industrial internet of things, cybersecurity, cloud computing, additive manufacturing, and augmented reality. These pillars will transform production from isolated cells to fully integrated and automated systems, improving efficiency. The goal of Industry 4.0 is to fulfill increasingly individualized customer needs through connected and data-driven manufacturing.