The Command Model presented here was developed in a project for designing executive informatic systems (EIS) balancing technical and human dimensions contracted by the Swedish National Board of Civil Emergency Preparedness (OCB). The contract explicitly emphasised new ideas, rather than piecemeal improvements of existing technology and procedures. The model focuses the intermediate level between operations and strategy. Executive informatics (EI) encompasses information technology and its use at top-level management, as contrasted with administrative or operative informatic systems. The Command Model categorises the four most frequent and important processes of tactical command and is based on symbols from Living Systems Theory (Miller 1978, Miller & Miller 1990). It can be implemented in software to be used as a front-end to operative informatic systems for command purposes.