How to Measure Quality and Performance in Training

Some people get overexcited with data and collect any kind of data, all the numbers. And it becomes so too much data can be as worse as no data at all. So you really need to sit down and try to figure out what are the key metrics that will lead to better performance for this training? Yeah. I think I might have an automata we need data, but we need the right data. Can you tell people the right data? You go ahead.