An interrelationship digraph helps you see relations and influences between several concepts – even if those concepts are very different.
Analyze is the third phase of DMAIC. The main activity in Analyze phase is to identify the potential root cause and arrive actual root cause.
Data analysis is a fundamental requirement in the Six Sigma methodology for identifying process inefficiencies and reducing defects.
Frequency plots help monitor the spread of continuous data. A frequency plot is a graph showing a variable’s distributional information.
The purpose of fault tree analysis is to effectively identify cause(s) of system failure and mitigate the risks before it occurs.