TWI Problem Solving develops skill in solving complex problems involving people and process quickly and sustainably. Participants of TWI PS learn how to analyse direct and indirect causes of problems and how they are connected. They also learn how to develop and implement simple, effective countermeasures to prevent problem recurrence. TWI PS combines the power of TWI Job Instruction, TWI Job Relations and TWI Job Methods. Companies practising this holistic problem solving method achieve rapid improvement in all performance dimensions.