Some of these parts, electronic product catalogs, were related to structure and were developed in a variety of database-driven architectures. The online store that relies solely on a database-driven product database is weak and cannot withstand competition or support customer needs. These early electronic catalogs displayed long lists of products to online customers. They lacked intuitive organization and structure.A strong online store is dependent on having the right elements, which consist of structure, form, and navigation. It is also dependent on having the right product mix, sufficient customer research, intuitive navigation and ease of use, and a good delivery and fulfillment mechanism. Information must be adequate and appropriate. The basic elements of the store the web pages must fluidly guide the customers to desired destinations. Customer-centered web design reverses the typical development order for websites. The typical method is to take an existing product database and build a user interface on top of it to accommodate the existing category structure. The customer-centered method starts with the user interface and builds the database structures and content to accommodate the page layout and content requirements of the customer and merchant. The user interface requires specific online merchandising techniques to influence effectiveness and design simplicity.