Root cause analysis tree diagram - Sale problem solution

"Root cause analysis (RCA) is a method of problem solving that tries to identify the root causes of faults or problems. ...
RCA (in steps 3, 4 and 5) forms the most critical part of successful corrective action, because it directs the corrective action at the true root cause of the problem. Knowing the root cause is secondary to the goal of prevention, but without knowing the root cause, it is not possible to determine what an effective corrective action for the defined problem would be. ...
3. Ask "why" and identify the causes associated with each step in the sequence towards the defined problem or event. "Why" is taken to mean "What were the factors that directly resulted in the effect?"
4. Classify causes into causal factors that relate to an event in the sequence and root causes, that if eliminated, can be agreed to have interrupted that step of the sequence chain.
5. Identify all other harmful factors that have equal or better claim to be called "root causes." If there are multiple root causes, which is often the case, reveal those clearly for later optimum selection." [Root cause analysis. Wikipedia]
This root cause analysis (RCA) tree diagram example "Sale problem solution" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Seven Management and Planning Tools solution from the Management area of ConceptDraw Solution Park.

"A root cause is an initiating cause of a causal chain which leads to an outcome or effect of interest. Commonly, root cause is used to describe the depth in the causal chain where an intervention could reasonably be implemented to change performance and prevent an undesirable outcome." [Root cause. Wikipedia]
"Problem-solving consists of using generic or ad hoc methods, in an orderly manner, for finding solutions to problems. Some of the problem-solving techniques developed and used in artificial intelligence, computer science, engineering, mathematics, medicine, etc. are related to mental problem-solving techniques studied in psychology." [Problem solving. Wikipedia]
This root cause analysis (RCA) tree diagram example "Personal problem solution" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Seven Management and Planning Tools solution from the Management area of ConceptDraw Solution Park.

"Causes in the diagram are often categorized, such as to the 6 M's ...
The 6 Ms (used in manufacturing industry):
(1) Machine (technology);
(2) Method (process);
(3) Material (Includes Raw Material, Consumables and Information.);
(4) Man Power (physical work)/ Mind Power (brain work): Kaizens, Suggestions;
(5) Measurement (Inspection);
(6) Milieu/ Mother Nature (Environment).
The original 6Ms used by the Toyota Production System have been expanded by some to include the following and are referred to as the 8Ms. However, this is not globally recognized. It has been suggested to return to the roots of the tools and to keep the teaching simple while recognizing the original intent; most programs do not address the 8Ms.
(7) Management/ Money Power;
(8) Maintenance." [Ishikawa diagram. Wikipedia]
This 8Ms Ishikawa diagram (manufacturing cause and effect diagram) template is included in the Fishbone Diagram solution from the Management area of ConceptDraw Solution Park.

This cause and effect diagram sample was redesigned from the Wikimedia Commons file: Fishbone BadCoffeeExample.jpg. [commons.wikimedia.org/ wiki/ File:Fishbone_ BadCoffeeExample.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
The fishbone diagram example "Bad coffee" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Fishbone Diagrams solution from the Management area of ConceptDraw Solution Park.