Data mining is sorting through data to identify patterns and establish relationships. Data mining parameters include: regression-in statistics, regression analysis includes any techniques for modeling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables. Sequence or path analysis -looking for patterns where one event leads to another later event. Classification-looking for new patterns. Clustering-finding and visually documenting groups. Decision trees are commonly used in operations research, specifically in decision analysis, to help identify a strategy most likely to reach a goal.