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ple scenario might look artificial, it shows that community concerns taken locally and
opportunistically may yield improvements to community fitness.
4 Conclusions
Design of autonomic communication systems and their elements is complicated by a
large number of interdependencies between different concerns and requirements. The
real challenge is not to attempt to solve associated problems at system design phase
but to embed such features into a system that will facilitate solutions at run-time. We
demonstrate this with soft-boot, run-time, local and context sensitive etiquette refine-
ment approaches. Autonomic network elements will likely to be much more flexible
than current hosts and routers in cross-layer interactions between entities of their
protocol stack; we try to capture this feature by the notion of a workflow — chromo-
some characterisation of node's behaviour — the payload of proposed etiquette com-
munication.
Etiquette is a mechanism for community building and community self-
management that is achieved through locally perceived and processed community
state under the governance of community fitness. We select trust establishment in ad
hoc networking as an example of non-functional requirement to be able to demon-
strate throughout the paper abstract concepts with examples; despite this demonstra-
tion purpose the future work will address more realistic scenarios for trust and intru-
sion detection based on the principles of autonomic communication.
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