The integration of human factors into engineering projects. Human factors integration (HFI) process and systems organizational/process constraints, HFI tools, and HFI best practices. Examples of HFI are drawn from energy, healthcare, military, and software systems. Application of HFI theory and methods to a capstone design project, including HFI problem specification, requirements generation, concept development, communication of design issues, and consideration of risk, through an iterative and open-ended design process.