This article describes a framework model within a selected nursing classification system for the integration of nursing care processes into a clinical information system. The "Electronic Nursing Process Data Model," project was carried out from July 2004 to October 2006 in the Canton of Zurich in Switzerland. The Zurich Electronic Nursing Process Data Model integrates the nursing diagnosis, outcomes, and intervention terminologies in a standardized manner into the nursing care process within the electronic patient record. Findings of the pretest application in clinical nursing practices revealed that (1) functionalities are logically structured, (2) it is difficult to overview many details of the documentation, (3) a specific "to-do list" retrieved from the electronic system is needed, and (4) free-text entries are important to add description of the patient's situation. Furthermore, a consistent assessment terminology needs to be linked to the nursing diagnosis, outcomes, and intervention terminologies and the descriptions of nursing care process within the Electronic Nursing Process Data Model. As the project team, we recommend to implement the developed Electronic Nursing Process Data Model into professional software of clinical information systems and gradually into clinical practice. Therefore, an appropriate utilization strategy includes issues to improve nurses' understanding of the nursing care process and critical-thinking skills: not even the most comprehensive software program can substitute for facilitation.