An analysis of the introduction of computers into the New York City Police Department through intensive, structured interviews with personnel in 15 administrative offices and advice from computer experts led to the formulation of seven principles bearing on the success of computerization. The seven principles are as follows: (1) detailed planning is required before computers are introduced; (2) leadership must be supportive and must participate in training; (3) enthusiasm among workers ensures their participation; (4) a sense of ownership of equipment promotes a sense of responsibility and leads to increased use--workers should not share computers; (5) incentives, such as better hours and financial rewards, encourage worker participation; (6) training should be flexible and should involve peer support, classroom instruction, and resource personnel; and (7) experimentation with software should be part of the training sessions. The evaluation of the New York City Police Department's computer introduction process illustrated the following: (1) leadership must not only be supportive during computerization, but they must also participate in the training; (2) experimentation in the training process helps to reduce worker anxiety about computers; and (3) management support is needed so that trainers can prepare the curriculum to meet the needs of the organization. (KC)