Art Technology Group, Inc. (ATG) develops and markets a suite of e-commerce software products and software-as-a-service (SaaS) solutions, as well as provide related services, including support and maintenance, professional services, application hosting, e-commerce optimization services for enhancing online sales, and education. Its solutions are designed to provide an e-commerce Website for its customers to create an online customer base. Its ATG Commerce Suite consists of solutions delivered through perpetual software licenses or delivered as recurring SAAS solutions. The Company’s products suite include The ATG Commerce Suite, The ATG Adaptive Scenario Engine, ATG Commerce Search, ATG Merchandising, ATG Content Administration, ATG Outreach, ATG Self-Service, ATG Commerce Service and ATG Knowledge. In February 2008, the Company acquired eShopperTools.com, Inc. (CleverSet). Its subsidiaries include Primus Knowledge Solutions, Inc., eStara, Inc., and CleverSet.