Signal Transformer, a manufacturer of electrical components, needed a website that allowed them to create an interactive catalog of thousands of parts. The user browses by product family and then reduces the list of parts by selecting individual specifications. From this short list the user can buy the parts using Google Checkout. Since Signal Transformer wanted to be able to maintain the website a content management system was required. Drupal was selected for it flexibility and Acquia Drupal was selected for it's commercial level support.