Some Root Cause Analysis processes are 5 WHY, Cause and Effect diagrams, Fault Tree Analysis, Flowcharting. Theses processes aim to identify, analyze and implement corrective actions to solve a problem. The problem solving process reviews to understand the lessons learned. This process aids in achieving further improvement within the business.
They often call a fishbone diagram a cause and effect diagram or Ishikawa diagram. These diagrams are a visualization tool for categorizing the potential causes of a problem, therefore identifying its root causes.
5 WHY boards are also popular. They identify the causes for a problem and identify a solution. And lastly, estimates the savings to the business on the bottom line.