Clarify your goals. Create a Scenario. It may be helpful to create scenarios as you visualize customers moving through your site. Accordingly, your site map will show how you organize your page views, features and functions to achieve these goals. An experienced e-commerce site development resource will also add detail to your site map, but you need an idea of what you want and how it should look to get you started.
Visitor clicks on product catalog icon.
Products appear with short descriptions and icons for each. Visitor selects a product to view by clicking on it. Description of the product appears in text and picture. Price is shown and a shopping cart icon is shown. Visitor clicks on shopping cart to store the item until ready to make a purchase, creating a cookie in the visitor's computer.