We have established the fact that the Measure and Analyze phase of the DMAIC approach are the most challenging. LSS teams spend considerable time in these two phases. To overcome challenges of gathering and analyzing data, we must understand the purpose of the Measure and Analyze phases.
In the Measure phase, the LSS team is trying to establish the process map, baseline for the primary metric used in the project and the amount of process variation. Creating a process map requires the team to actually go see the process and create the map as they walk through the process steps.
Some popular tools for measuring baseline & process variation include:
Histogram, scatter diagram, trend chart for historical data, capability studies and gage R and R studies.
In the Analyze phase the LSS team is trying to determine root cause of the problem and validate it too. Fishbone diagram or Affinity diagram and Potential cause Prioritization matrix are the two tools for identifying root causes. Then comes root cause validation which requires establishing a hypothesis statement and choosing the appropriate statistical test for validating the hypothesis. Test the hypothesis with enough sample data. Most LSS teams struggle here.
The Green or Black Belt leading the LSS project has to ensure the team maintains focus on getting the required information using the necessary statistical tools.
What are some of the tools you have used to overcome analysis-paralysis in LSS projects?
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment