Problem: Two quantitative elements that IRS organization consist of is consumer preferences, and services. Develop forecasts by implementing the following approach: Collect data, including old demand forecast (subjective data) and the actual demand outcomes. Establish the forecasting method (from readings). Decide on the balance between subjective and objective data and look for trends and seasonality. Forecast future demand using a forecasting method. Make decisions based on step 3. Measure the forecast error where applicable. Look for biases and improve the process.