This guide provides an overview of task analysis, a process used to identify and examine the tasks users perform when interacting with systems. It outlines 25 major task analysis techniques, organized into a practical user guide. The guide is aimed at industrial practitioners such as design engineers, safety assessors, ergonomics practitioners, trainers, procedures writers, and project managers. It covers the application of task analysis in areas such as function allocation, person specification, staffing and job organization, task and interface design, training, human reliability assessment, safety management, and performance checking. The guide provides guidance on which techniques to use to achieve human-system performance goals in the most cost-effective manner. It includes case studies that demonstrate how task analysis has been used in practice and the impact it has had in industrial applications. The guide also includes a glossary of terms, acronyms, and a subject index.This guide provides an overview of task analysis, a process used to identify and examine the tasks users perform when interacting with systems. It outlines 25 major task analysis techniques, organized into a practical user guide. The guide is aimed at industrial practitioners such as design engineers, safety assessors, ergonomics practitioners, trainers, procedures writers, and project managers. It covers the application of task analysis in areas such as function allocation, person specification, staffing and job organization, task and interface design, training, human reliability assessment, safety management, and performance checking. The guide provides guidance on which techniques to use to achieve human-system performance goals in the most cost-effective manner. It includes case studies that demonstrate how task analysis has been used in practice and the impact it has had in industrial applications. The guide also includes a glossary of terms, acronyms, and a subject index.