Shared Plan Model - a rich plan representation using
a common constraint model of activity (<I-N-CA>).
Shared Task Model - Mixed initiative model of
“mutually constraining the space of behaviour”.
Shared Space of Options - explicit option management.
Shared Model of Agent Capabilities - handlers for
issues, functional capabilities and constraint managers.
Shared Understanding of Authority - management
of the authority to plan (to handle issues) and
act which may take into account options,