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This paper explores the effects of computerized medical information systems on the occupational communities of health care professionals in hospitals. Interviews were conducted with informants from the pharmacy and nursing departments at two hospitals currently using medical information systems for communicating physicians' medication orders from the nursing station to the pharmacy. Results showed changes in tasks for both pharmacy and nursing, resulting in increased interdependence between the two departments. This interdependence was accompanied by improved communication and cooperation, providing an opportunity to encourage better working relationships between departments. The use and maintenance of the common computerized data base became a superordinate goal for the two groups, with the computer system itself as the topic of communication. [ABSTRACT FROM AUTHOR]

In this case study, computer systems are explored as catalysts for new interactions between departments in health care organizations. Hypotheses investigated changes in the extent to which members of different departments (1) exchange information and (2) understand each other's work following implementation of an integrated medical information system. Analyses showed that communication-based forms of involvement in implementation (communicating with systems personnel and trainers, communicating about new ways to use the system, and receiving support from supervisors for doing so) were overwhelmingly more important than either general participation or computer use in predicting increases in interdepartmental interaction. Changes in tasks and roles also led to new, informal, face-to-face contacts to support computer system use, as well as greater administrative control over the organization as a whole. In addition, results of interviews and observations over the two-year study period illustrate the importance of work group identification in predicting changes accompanying computerization. [ABSTRACT FROM AUTHOR]