How can project managers use their Function Point history to improve the way they estimate their projects? Leveraging historical data to generate and sanity check macro-level estimates early in the project lifecycle can save thousands of dollars in planning time and prevent signing up to unrealistic project schedules and budgets. Now that we've learned the basics of estimating before requirements, Keith Ciocco demonstrates how to use industry data and Function Point history with the SLIM Suite of Tools for a more mature estimation process.