Abstract: | Data warehouse has gradually become the necessary IT system for modern enterprises. As a leader in data warehouse industry, Informix solu-tions have been successfully used in many trades like finance, telecom, government, manufacturing and retail. Applications of Informix business intelligence and EC solutions in Guangdong Mobile Communications, GTE Telecom Service Co., Teligent, Tianjin Mobile Communications and KOZ.com are exemplified in this paper. |