Tech Insights

5 Porquês

Last updated May 16, 2025, generated by Sumble

What is 5 Porquês?

The "5 Whys" is an iterative interrogative technique used to explore the cause-and-effect relationships underlying a particular problem. The primary goal is to determine the root cause of a defect or problem by repeatedly asking the question "Why?". Each answer forms the basis of the next question. The "5" in the name derives from an anecdotal observation on the number of iterations needed to resolve the problem.

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What other technologies are related to 5 Porquês?

5 Porquês Competitor Technologies

5W2H

5W2H is a problem-solving method that explores the who, what, when, where, why, how, and how much aspects of a problem, similar to the 5 Whys. Therefore, it can be considered a competitor.

mentioned alongside 5 Porquês in 8% (58) of relevant job posts

Ishikawa

The Ishikawa diagram (or Fishbone diagram) helps identify potential causes of a problem. While it addresses cause and effect in a visual manner, it serves a similar purpose to the 5 Whys by revealing root causes. Thus, it is a competitor.

mentioned alongside 5 Porquês in 3% (106) of relevant job posts

5 Porquês Complementary Technologies

PDCA

PDCA (Plan-Do-Check-Act) is an iterative four-step management method used in business for the control and continuous improvement of processes and products. The 5 Whys can be used in the 'Analyze' step, making it a complementary technology.

mentioned alongside 5 Porquês in 1% (78) of relevant job posts

FMEA

Failure Mode and Effects Analysis (FMEA) is a systematic, proactive method for evaluating a process to identify where and how it might fail. The 5 Whys can be a technique used during the 'cause' analysis portion of FMEA, acting as a complementary tool.

mentioned alongside 5 Porquês in 0% (53) of relevant job posts