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Visa offers dozens of products to financial institutions, merchants, and consumers that are powered by applications that run on "virtual machine" servers in Visa data centers. Managing the underlying hardware requires the ability to forecast future server needs well in advance, to ensure that equipment is in place when it is needed. Forecasting anything involving technology using only historical-based trends is fraught with peril, so a forecasting model that allows for user adjustments is important. This session will detail out a technical approach for building an interactive Tableau forecasting model that combines historical-based forecasting with user-controlled adjustments.
The approach involves:
- Creating "placeholder" data for the forecast
- Lots of table calculations to apply the forecasting logic
- Using parameters to make adjustments to the forecast