A data collection form is a best practice of data collection. It’s a way of recording your approach to obtaining the data you need to perform your analysis.
A run chart is a basic graph displays data as they evolve over time. Simple rules can be useful for identifying trends or shifts in process.
A check Sheet is a data collection tool that usually identifies where and how often problems appear in a product or service.
A Pareto Diagram is a bar chart that re-orders the categories so they are rank-ordered from the largest total occurrences to the smallest.
How to determine baseline project sigma is one of the key aspects of the Measure phase. It is part of the data collection plan.