Simple task
Lack of concentration
: Effect
Work efficiency
deteriorates
Increase of malfunctions
Increase in mistakes
New person added
Procedure deteriorates
Obsolete infrastructure
Corporate and legal affairs
Increase in chatter
: Cause
Chapter 1
●Association diagram
An “association diagram” indicates by arrows relationships between
“causes and effects” or “goals and methods” to explicate the structure of a
problem. This is useful when a problem that needs solving is well-established, but the causes behind it are convoluted.
This method may go through several rounds of revisions by multiple team
members who will approach the problem from different angles, effectively
getting at the root of the problem, and helping to find a solution.
●Tree diagram
A “tree diagram” is a method for hierarchically expressing a chain of
“goals and means” in order to discover ways to solve a problem. The process of creating a tree diagram and the completed results can provide specific policies and actions for resolving the problem.
Means for
“staffing measures”
Staff education
Staffing measures
Improved allocation
Improve work
efficiency
Introduce new model
Goal
Equipment measures
Re-examine operations
Means for “improving
work efficiency”
Means for
“equipment measures”
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