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sending a message
through calling the event
agent A 1
process of
creation
the agent
help!
environment
agent A 2
receiving a message through
the observation of an event
Fig. 3.1 Schema of the notion of an agent used as an element of the construction of a computing
system. The agent calls an event in the environment, which is a message for another agent
Therefore, the agent becomes an active element of the system capable of making the
system change in an advantageous way and consequently in the way accepted during
the design of the system (see Fig. 3.1 ).
The notions presented above have provided a basis for the realizingmany computer
systems. It should be emphasized that the subsequent introduction of the notions of
an object and an agent does not result in the fact that other existing elements used
for the creation of systems lose their validity, and are not or should not be used. On
the contrary, the newly introduced notions enrich (but do not replace) the existing
set of tools for the construction of systems and may be applied in parallel with them,
giving greater possibilities for creating more complex computer systems.
Summing up, it may be concluded that the role of an agent in the environment
involves maintaining the process of changes, i.e., developing dynamically changing
populations of autonomous agents which, through their operation in the scattered
environment, proceed the integration and processing of resources indispensable for
realizing a given task in a decentralized manner.
3.2.2 Intuitive Approach to the Construction
of an Agent and Properties of Agents
Research on defining the agent approach and a description of an agent itself and
multi-agent systems need specifications of basic properties the autonomous agent
should be equipped with. It should operate according to certain intuitive common—
sensical rules, and be predicted as well as observedwhile analyzing real decentralized
systems which can be treated as a certain source of description of (a model) an agent.
Some features have already been described; this time however, let us try to look from
 
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