Hi Neha,
Six Sigma is a very systematic methodology for improvements. It uses a 5 step approach VIZ Define, Measure, Analyze,Improve and Control. Coming back to your project on attrition rate, don't come to any conclusion based on exit interviews. Use the following steps ( You may need training on six sigma before doing this)
1. Define your problem clearly using SMART approach ( Your goal should be specific,Measurable, Aggressive but Achievable, Relevant and Time bound). Defining scope & boundaries is very important.Specific formats available for this. Example : Project Charter
Map the entire process from recruitment to attrition.
2. After clearly defining the scope & objectives, establish baseline ie.. measure the existing status, ensure your measurement system is objective & not open to different interpretations.
In this stage you will identify different variables (In six sigma they are called as Xs) contributing to attrition. They may vary from 25 to 75 depending on your scope & organization.
3. This stage you analyze each of those variables using statistical tools (Ex: hypothesis testing) and eliminate non contributing Xs . This is funneling process. By the end of this stage , you will have few Xs ( Normally 3 to 9) which are taken in to next step
4. In the Improve stage you validate the remaining Xs and identify the main contributors and Root causes. Also you will idetify the improvement actions.
5. This stage is called control OR sustenance of improvements. You establish controls for holding the gains for long term.
This is just a overview and actual project needs lot of focus,team work and basic knowledge of Statistical tools.
All the best for your project
Ramesh
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