A web-based expert system for product selection and method of using the system is provided. The system includes (A) a graphical user interface that guides the customer through a choice of applications, specification, and product rating and interactively displays a scored list of available products; (B) the entire selection process in shown in segments of just one screen so the user can go back and change his requests interactively; (C) a user interface that provides direct links to web-based product data such as product data sheets and Material Safety Data Sheets, or alternatively provides links to generic web search engines; and (D) has program instructions separate from product information, so that the product data can be easily kept up-to-date and distributed through the web.
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