摘要：This study aimed to test the impact of information technology on Information systems effectiveness in Jordanian Telecom Companies. The study adopted a five-dimensional scale to measure information technology (people, hardware, software, databases, and networks), while the information systems' effectiveness was measured through four dimensions: end-user satisfaction, system usage, system security and suitability of the system for management levels. To achieve study aims, a descriptive-analytical method was used. The study was conducted on a sample of (152) managers working in these companies. This study found that there is a high-level average for information technology dimensions and Information Systems effectiveness dimensions. Also, the results showed a significant impact of information technology dimensions (people, software, databases, and networks) except hardware on effectiveness information systems. It was also evident that there a significant impact of information technology on Information systems effectiveness dimensions (end-user satisfaction, system usage, system security and suitability of the system for management levels).
