One of the abounding things that is accepted amid Lean and Agile is that they accomplish problems visible. Best of the time back we see a problem, we attending for the best accessible band-aid and apparatus that solution. Sometimes, abnormally with circuitous problems, the best accessible band-aid is not the best solution; sometimes you accept to dig added to get to the absolute basis cause.
There are a cardinal of techniques to assay problems and try to get added advice or a bigger assay of the issue. The best accepted is the 5 Whys Method, wherein you ask “Why” 5 times. Addition adjustment which I would like to altercate is the Fishbone diagram, additionally accepted as the Account and Aftereffect diagram.
The fishbone diagram is a graphical adjustment to appearance accessible causes of the problem. It does not advice you break the problem, but does assay abeyant basis causes. You can again agreement to actuate the absolute basis account and accessible solutions.
The diagram gets its name from its shape. It, well, looks like the basic of a fish.
To draw the diagram is absolutely simple. At the arch of the angle is the problem, additionally accepted as the abominable effect. It is bigger if you byword the botheration as a catechism rather than a statement. “Why did <problem> happen?” rather than aloof “Problem.” Sometimes delivery things as a catechism gets a bigger anticipation action than aloof a statement. Once you accept the head, again you accept the back and from the spine, the ribs which represent the groups of causes. The causes again annex off the ribs.
As you can see, the diagram is absolutely simple and bound shows how abeyant causes chronicle to one another.
There are two accepted brainstorming methods to accepting the fishbone diagram.
The aboriginal is to begin accessible causes and address them bottomward on “Post-It” addendum on a wall. Group the post-its calm by accord to one another. Those relationships become the ribs of the diagram.
The additional adjustment is to pre-label the ribs. An archetype may be to use “People,” “Process,” and “Technology” (You don’t accept to accept an alike cardinal of ribs). This adjustment helps focus on accessible causes, but can absolute cerebration to alone aural these groups.
Below is a absolutely bogus archetype area the problem/undesirable aftereffect was that a adding of 2 numbers led to the amiss value.
As you can see, there is no “solution” to the issue. We are aloof attractive at accessible affidavit as to why the birthmark occurred.
The aing footfall in the action is to discuss, and assay the accessible causes and again acquisition means to abate them from happening.
The Fish-Bone diagram is a simple but able adjustment to advice appearance problems in a new light. This can advance to bigger basis account assay and avant-garde solutions.
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