A business perspective on information systems. Provides economic value. Dimensions of information systems. Management. Operational Management: is responsible for monitoring daily activities. Middle Management: Carries out programs and plans of senior management. Senior Management: Long-range strategic decisions about products and services as well as ensures financial performance of the firm. Key elements. People. Structure. Business process. Politics. Culture. Feedback: output that is returned to appropriate members of the organization to help them evaluate or correct the input stage. Output: transfers the processed information to the people who will use it. Processing: converts raw input into a meaningful form. Input: captures or collects raw data from within the organization or from its external environment. Data: facts representing events. Organizations: Need information systems.