- Problem Solving Compendium as I read and interpreted it.
- Write down in the center of three columns what is wrong (problem surface)
- Write down to the right what that problem aspect brings (results)
- Write down the causes and conditions that bring about the problem aspect (causes)
- Use arrows to represent the relationship between the items written out.
- Add items as needed.
- If multiple arrows are AND conditions, specify them.
- Trying to be âlogicalâ and thereby reducing omissions
- Often the same thing appears in multiple parts of the tree
- Like cause and effect are the same thing.
- â vicious circle loop can be noticed occurring
- Current Status Analysis Tree and Future Analysis Tree.
- Starting with the current âbad thingsâ is the status quo analysis tree
- Future Reality Tree (Future Analysis Tree) starts with future âgood thingsâ (ideal).
It is consistent with the basic concept of gold rat, which is that taking out a part of an interdependent system and optimizing it does not result in total optimization; one must grasp the whole, find out what needs to be improved, and make those improvements. On the other hand, Dr. Goldrattâs Logical Thinking Process says âfind constraints. Need to check.
- âI mentioned âfinding constraintsâ earlier, but also âfinding vicious cyclesâ on p. 103
One interesting point is that you start with more than one problem surface. When problems are intertwined, picking one problem at random and coming up with a solution will not work.
I had mistakenly thought the markings on the arrows were AND/OR, but apparently not.
- Cause insufficiency
- Multiple causes, any one of which can be âinsufficientâ to bring about a result if any one of them is missing.
- In other words, this is an AND.
- The translation reads âSufficient cause,â not âsufficient condition.â
- I think you have made a mistake in what should be âinadequate cause.â
- additive cause ? Another cause ?(additional cause)
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There are two special situations. The first is called another cause, and another cause itself can consist of more than one cause (sufficient cause).
- Chances are good that the person doing the translation didnât properly understand this part.
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The second situation is quite different. This is the idea of âamplificationâ and intensification, where another independent cause intensifies the result.
- - p.90 - Iâm using the word âadditiveâ here. - Independent (OR) conditions can be expressed by arrows without any symbols in the first place, so I think the bow-tie type symbols are deliberately introduced to express âmutually amplifyingâ and âadditiveâ relationships.
- Goldrattâs Theory of Constraints: A Systems Approach to Continuous Improvement divides it into three categories
- Ellipse: Conceptual âANDâ: complete dependency
- No Symbol: Additional Cause: complete independence
- Bow Tie: Magnitudinal âANDâ
- P. 47
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