Final answer:
The three main dimensions of information systems are indeed management, organizations, and information technology. This multi-faceted approach reflects how information systems are deployed and managed across businesses and bears significant impact on their success.
Step-by-step explanation:
The statement that the three main dimensions of information systems are management, organizations, and information technology is True. These three dimensions are critical in understanding how information systems are integrated and utilized within businesses and other organizations. Management refers to the planning, directing, coordinating, and controlling of resources to achieve organizational objectives. Organizations encompass the structures, processes, and cultures that define and guide them. Information technology entails the hardware, software, databases, and networks that support the management and dissemination of information.