Cause and Effect Chain Analysis :

· A cause-and-effect analysis generates hypotheses about possible causes(reasons) and effects(results) of problems

· A Cause & Effect Chain (CEC) analysis diagram is a structured way of expressing hypothesis about the causes of a problem or about why something is not happening as desired

· It helps to focus attention on the process where a problem is occurring and to allow for constructive use of facts to narrow down on the actual causes

· It cannot replace empirical testing of these hypotheses, it does not tell which is the root cause, but rather the possibilities

Example :

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What is TRIZ ?

· TRIZ is the Russian acronym for the “Theory of Inventive Problem Solving”. · It is a systematic problem solving method based on logic and data, not intuition or spontaneous creativity of individuals or groups · Developed by Genrich Altshuller and his colleagues from 1946 through to 1985 in the former Union of Soviet Socialist Republics (USSR) · It is based on the study of patterns of problems and solutions · TRIZ provides repeatability, predictability, and reliability due to its structure and algorithmic approach · It improves individual or team’s ability to solve problems Advantage of Triz : · Help to find multiple quality ideas in a systematic and efficient manner...

TRIZ process flow :

2 Key Steps : A) Function Analysis • Helps to clearly identify the Engineering System . • In function analysis we have the Supersystem, System and Subsystem. • Subsystem – component within Engineering system. • Supersystem – component outside system boundaries. Not designed as a part of the System. • System – components interaction between subsystem. B) Cause and Effect Chain Analysis • Help to identify the fundamental root cause(s). • These fundamental root causes are essentially the root causes of Engineering System problem which need to be resolved. Function can be categorized into two types : a) Useful i. ...

TRIZ Models & Tools :

TRIZ Tool : Structured Problem Solving What is Structured Problem Solving? Structured problem solving provides a systematic approach to advance from the identification of a problem to the solution. Step-by-Step Process 1. Define Problem : Purpose • Identify the problem and the importance of working on it Output • Establish a team • Develop Problem Statement 2. Current Solution : Purpose • Clarify the problem areas as the situation exists today Output • Create a problem description 3. Identify Causes : Purpose • Identify and verify the root causes of the problem Output • Isolate and verify the root cause of the problem 4. ...

DFT1012 Inventive Problem Solving

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