![]() ![]() The purpose of this study is to investigate cornerstone root causes through the application of CEDs in 40 Mexican companies that began an effort to improve some of their organizational processes. 5 Whys, or 5Y, is a powerful tool for getting to the root cause of a problem, and an effective way to expose weaknesses in your systems or processes. Exploring this questioning can shed light on the first indications to ratify the arguments of Ishikawa and Deming, that the main problems of companies are found in their processes and perhaps, in a deep way, in some of these cornerstone root causes that have to do with the way organizations are managed. Another popular root cause analysis (RCA) approach is to create a fishbone diagram. In this group of quality tools is the cause-and-effect diagram (CED), also known as “The Fishbone” and “Ishikawa diagram”. For example, it may be necessary to ask more than five questions or use other approaches to define a root cause. This involves repeatedly asking why each part of an incident occurred to whittle down to the root cause. ![]() Another method used to analyse CDPs or SDPs is the ‘5 Whys’ approach. Once the topic is identified, draw a straight, horizontal line (this is called the spine or backbone. Frequently there is more than one CDP or SDP related to the incident and may well be more than one root cause. Discuss all possible causes and group them into categories. The Root Cause Tree® Diagram gives an investigator an operational definition of What is a root cause and guides the root cause analysis. Define the process or issue to be examined. Kaoru Ishikawa proposes seven basic quality tools. These are the best and most common practices when creating cause and effect diagrams. Some of these efforts use quality control tools to remedy it. The problem or effect is displayed at the head or mouth of the fish. It is a more structured approach than some other tools available for brainstorming causes of a problem (e.g., the Five Whys tool). The elimination of problems and waste (MUDA for the Japanese) plays a fundamental role in the reduction of operational costs and quality rejections of finished products both internally in the organization and in the supply chain. A fishbone diagram is a visual way to look at cause and effect. Some manufacturing and service organizations have made efforts to work on continuous improvement in the form of Kaizen, lean thinking, Six Sigma, etc. A Fishbone Diagram is a structured brainstorming tool designed to assist improvement teams in coming up with potential root causes for an undesirable effect. ![]()
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