1. Introduction

This chapter begins by tracing the origins of additive manufacturing, from its inception with stereolithography in 1984 to its current status as a versatile tool for product design and optimization. It highlights the unique capabilities of additive technologies in producing complex parts with internal structures, enabling lightweight design and energy savings. The chapter also discusses the various applications of additive manufacturing, from rapid prototyping to direct manufacturing and repair, across different industries. It emphasizes the need for a development methodology to harness the full potential of these technologies, addressing both strategic and practical aspects. The chapter is structured to guide professionals through the entire development process, from component selection to validation and quality assurance, and includes real-world examples and business model considerations. It concludes by exploring the sustainability aspects and the digitalization of additive manufacturing, making it a valuable resource for anyone seeking to understand and implement these innovative technologies.