These decisions are extremely important for supermarkets since new products make a substantial contribution to total supermarket sales and profitability. Product addition and deletion decisions are also important because store sizes, at the individual store or at the chain level, are quite stable. Available shelf space is therefore an increasingly scare resource facing an ever-increasing onslaught from the variety and volume of new products competing for that scarce resource.
3. Model should have the Main menu, Input page and a Decision page, where the decision will be: Reject or Accept. For the acceptance criteria put average <=2.2. Data should be transferred to the Decision page from the Input page. After a product is rated, clean the area for the next product. You do not need to organize lists of accepted and rejected products. Be careful to organize checking if all data are entered (empty cell in Excel is treated as ZERO making the product to score better in the suggested rating system!).