Typical inventive practice allocates functions between human and robot, interacting in an unmanned system. Analyses are performed of: mission system; function allocation; and, human-robot interaction automation allocation. Mission system analysis includes: identification of mission system needs, mission system integration parameters, and mission capability configuration; and, mission system report creation (at least partially based on these identifications). Function allocation analysis includes: mission activity analysis; functional allocation report creation (at least partially based on the mission activity analysis); unmanned system safety analysis; and, unmanned system safety report creation (at least partially based on the unmanned system safety analysis). Human-robot interaction automation allocation analysis includes: identification of unmanned system capabilities, unmanned system mission safety considerations, and human-robot interaction configuration; human-robot interaction test-and-evaluation plan creation (at least partially based on these identifications); human-robot interaction performance evaluation; and, human-robot interaction configuration final report creation (at least partially based on the human-robot interaction performance evaluation).