Hi Priya, A six sigma project or any improvement strategy on the effectiveness of Training on the performance defenitely provides a great scope of learning and can be replicated to other cross funtional departments as the scope of training is quite common across functions, therefore please make sure that you have all the relevant data first and then proceed. Secondly an easy way to improve the training performance would be to do a Cause and Effect Diagram which will help you identify the key inputs which hamper the performance like Training Contents, Trainer Skills and Knowledge, training methodology etc. Ideally involve the key stakeholders in the C&E process and once you have the inputs then drill them down to vital few inputs using C&E matrix and pareto and accordingly you can develop Control plans to improve the training process.