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be driven by motivations which are linked to their needs and desires and the influence
of which depends on their current beliefs as well as on their self-evaluation. In sum-
mary, our model of a motivated
BDI
agent is based on the following principal ideas:
1.) we make use of a flexible hierarchy of motive types that roughly follows Maslow's
model [5] and distinguishes between deficiency and non-deficiency needs, 2.) desires
are linked to motives by couplings that are assigned some degrees of strength (positive
or negative) and that can be triggered by conditions found to be true in the agent's belief
about the world, and 3.) the interactions between motives on different levels of the hier-
archy are processed by use of an aggregation function and give rise to the motivational
structure of the agent that guides its current behavior.
In spite of the richness and complexity of our approach, the motives of the agent are
clearly seen to be the basic driving component for the agents behavior. This enables the
agent to act autonomously and on intrinsic incitement.
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