Scientific Management focused on increasing productivity through efficient production processes. Frederick Taylor is considered the Father of Scientific Management; he published the Principles of Scientific Management and believed managers should develop rules/routines, replace rule-of-thumb methods, select and train workers, and provide wage incentives. Frank and Lillian Gilbreth made important contributions through time and motion studies, establishing standardized elements of tasks. They developed symbols to represent task elements and studied ergonomics through adjustable workstations. Henry Gantt also worked to develop task-based work with bonuses to stimulate performance.