Introduction to Product Development and Design for Engineers and Scientists, 2nd Edition offers a systematic, best-practices approach to master the engineering processes that drive successful product design and development across mechanical, electrical, and software domains. This updated edition expands its scope to include disposable and consumable products and introduces a new chapter on measurement uncertainty, exploring its critical impact on test results and decision-making. This enhanced edition integrates Agile methodologies with real-world case studies, providing practical frameworks to help engineers and scientists navigate ambiguity, avoid scope creep, and prevent product launch delays. Readers will gain tools to implement contemporary approaches while maintaining engineering rigor and quality standards. Comprehensive case studies and hands-on exercises reflect the challenges of modern product development, equipping readers with a practical skillset applicable to the evolving landscape of modern product development. Tailored for academic audiences and engineering and science students on product design courses, this textbook delivers industry-proven best practices and actionable guidelines for product design and development. Online PowerPoint presentations and figure slides further support learning at www.routledge.com/9781032895215, offering essential tools to drive world-class innovation and sustainment of cutting-edge products.