1. Judgment methods - translate the opinions of managers, experts, consumer surveys and salesforce estimates into quantitative estimates
2. Quantitative methods - casual methods and time series analysis

• Casual methods - historical data on independent variables
• Time series analysis - statistical approach, relies heavily on historical demand data to project future size of demand and recognizes trends and seasonal patterns

I'm going to encourage you a little, to help you get started. :)

I am going to encourage you a little, to help you get started :)
Since you looked us up and read the site enthousiastically, I would like to offer you a big discount.