A systems driven device for assessing occupational stress was evaluated and tested. The device, the Occupational Stress Evaluation Grid (OSEG), was a seven by three matrix that ordered stressors and responses in a hierarchy going from physical dimensions to sociocultural levels of analysis. It was tested in an occupational setting in collaboration with a labor union. The emphasis was on entry, the consultant's role, establishing trust and allies, group dynamics, organizational structure, reciprocity, and follow up. The initial contact with a union of hotel workers was described; at this meeting the researchers described that they wanted to divide the hotel into levels of the OSEG, and that they wanted to bridge the gap between labor and management definitions of stress through a collaborative stress assessment. In return, the unionized employees described their problems with management and discussed upcoming contract negotiations. The first stage of the assessment was described, and the investigators described how their strategy was planned. A group of hotel employees were interviewed in order to obtain a diagnostic occupational history and the investigators administered orally a pilot version of their questionnaire. Next they conducted a stress survey according to the stressors present at the hotel. The authors conclude that these initial studies are very encouraging, and they mention that the Food and Allied Services and Trades department of the AFL/CIO has requested copies of the OSEG, questionnaires, and results.