Visions of the next-generation Internet of Services are driven
by digital resources traded on a global scope. For the resulting
economic setting, automated on-line techniques for
handling services and resources themselves, for advertising
and discovering as well as for the on-the-
y negotiation of
proper terms for their use are needed. Hence, a
exible infrastructure
for the respective management of services and
associated service level agreements is mandatory.
In this paper we present a novel approach for such an infrastructure,
building on software-agent technology and an
expressive but still machine manageable protocol description
language, capable of specifying a multitude of di erent
negotiation protocols. It supports the discovery of services
with appropriate SLA negotiation styles as well as the actual
SLA negotiations based on the chosen protocol description