Emergence of digital firm: - business relationships are digitally enabled; customers, suppliers, Business objectives y operational excellence: businesses seek to improve the efficiency of their operations in order to achieve higher profitability. Improved decision making: businesses and managers never really have right information and the right time to make informed decisions, they take chances and the poor outcomes raise costs and loose customers. These necessities are driven by industry level changes. (atm machines) Input: captures or collects raw data from within the organization or from its external environment. Processing: converts this raw input into a meaningful form. Output: transfers the processed information to the people who will use it or to the activities for which it will be used. Feedback: output that is returned to appropriate members of the organization to help them evaluate or correct the input and processing stages. Computer science: concerned with establishing theories of computability, methods of computation, and methods of efficient data storage and access.