The integration of a professional practice model of nursing and nursing informatics support for that model is congruent with the goals of a professional nursing union. Thus, the collective-bargaining unit can be a powerful ally to nursing management in achieving the integration of a professional practice model of nursing and nursing informatics. This alliance is based on a shared vision of the nature of professional nursing practice and a common concern for the quality of working life and working environment of the professional nurse. This alliance can provide the basis for decision making about the type of nursing information system to be selected or developed for installation in a particular organization. Use of a participatory decision-making process will ensure that all nursing stakeholders are committed to the decision made and prepared to assist with the resolution of implementation issues as they arise. A harmonious alliance of nursing management and the nursing union ensures a partnership that will protect the clinical nursing caregiver and provide a unified voice for nursing within the organization to resist any attempt by other stakeholders to implement an information system that will not meet the needs of nursing. If nursing management and the collective bargaining unit share the concept of a professional model of nursing practice and view nursing informatics as a tool to assist the nursing staff to operationalize the professional model of nursing, then collaboration in resolving issues related to the implementation of nursing information systems will facilitate the process of achieving the integration of a professional practice model of nursing and nursing informatics support for that model.