Tools
7MP Management and Planning Tools
8QC Traditional Quality Control Tools
Failure Mode, Effects, and Criticality Analysis
Maintainability and Availability
Process Decision Program Charts
Pareto charts are typically used to prioritize competing or conflicting "problems," so that resources are allocated to the most significant areas. In general, though, they can be used to determine which of several classifications have the most "count" or cost associated with them. For instance, the number of people using the various ATM vs. each of the indoor teller locations, or the profit generated from each of twenty product lines. The important limitations are that the data must be in terms of either counts or costs. The data cannot be in terms that cannot be added, such as percent yields or error rates.
Only Attributes data can be applied to a Pareto Chart.
Learn more about Pareto charts here:
Create and analyze a Pareto Chart in Excel
Learn more about the Quality Improvement principles and tools for process excellence in Six Sigma Demystified (2011, McGraw-Hill) by Paul Keller, or his online Green Belt certification course ($499).