Root Cause Analysis (RCA), Learn Top 8 RCA Techniques.
What is RCA? RCA in general helps companies improve a logical approach for problem solving. Once the main issue is identified for a defect, what normally follows is trying to figure out. And finding out major problem-solving approaches with help of information what is already available.
While there are several Root Cause Analysis Approaches are available, here we would like to talk about top eight.
- The “5 Whys” Analysis
- Barrier Analysis
- Change Analysis
- Causal Factor Tree Analysis
- Failure Mode and Effects Analysis (FMEA)
- Fishbone Diagram or Ishikawa Diagram
- Pareto Analysis
- Fault Tree Analysis
The “Five (5) Whys” method
The method is easy to go with and pretty simple. Once a problem occurs, you scrawl down to its root cause by asking “Why?” for the five five times.
“Barrier Analysis” method
Barrier Analysis method is very useful for security penetration incidents what was not included due to its limited benefits for software related incidents.
“Change Analysis” method
Change analysis is a problem solving RCA method that includes a comparison process what has failed or is performing poorly to one that is operating correctly. Pretty much comparing.
“Casual Factor Tree” analysis
That is also known as a critical causal factor or contributing cause. Nearly unplanned, unintended performer – contributor to an incident. Mainly a negative event or undesirable condition, that if eliminated would have either prevented the occurrence of the incident or reduced its severity.
“Failure Mode and Effects Analysis” (FMEA)
Failure Mode and Effects Analysis (FMEA) is a well-structured approach to find out the possible failures what may exist within the design of a product or process or function.
“Fishbone Diagram” or Ishikawa Diagram
It’s widely used in product design and quality defect prevention. Fishbone diagram helps in identifying possible causes for a problem that might not otherwise be considered by directing the team to look at the categories and think of alternative causes.
Pareto Analysis is based on decision-making technique. And, it aims at assessing competing problems and measuring the effectiveness of fixing them.
“Fault Tree Analysis” (FTA)
Fault Tree Analysis (FTA) frequently runs something under observation and examines a system from top-down. With the proceeding it provides graphical symbols for ease of understanding. It also incorporates mathematical tools so that it can be focused on most important areas.