The step-by-step concretization of a basic abstract system S–O has been done in the article. The main phenomena of team labor were identified through this process and basic forms of team work integration such as organization culture, exchange relationships, procedural and distributive justices as well as integration by labor objects were disclosed. The full range of ergatic systems’ forms was exposed as result of concept modeling. The ergatic system model has shown sufficient logical base for integration of subjects of ergonomics and organizational psychology. It also demonstrates the full opportunities of activity approach as general theory for wide scope of humanitarian sciences.