Sample Survey and Test Marketing: Under this method some representative households are selected on random basis as samples and their opinion is taken as the generalized opinion. This method is based on the basic assumption that the sample truly represents the population. A variant of sample survey techniques is test marketing . product testing essentially involves placing the product with a number of users for a set period. Their reaction to the product are noted after a period of time and an estimate of likely demand is made from the result.
The End Use Method: In this method the sale of the product under consideration is projecting on the basis of demand survey of the industries using this product and intermediate product. In other words demand for the final product is the end use demand of the intermediate product used in the production of this final product.