A Cross-Layer BPaaS Adaptation Framework

The notion of a BPaaS is currently taking a momentum
as many organisations attempt to move and offer their
business processes (BPs) in the cloud. Such BPs need to be
adaptively provisioned so as to sustain the service level promised
in the respective SLA. However, current cloud-based adaptation
frameworks cannot cover all possible abstraction levels and
usually rely on simplistic adaptation rules. As such, this paper
proposes a novel BPaaS adaptation framework able to orchestrate
actions on different abstraction levels so as to better address
the current problematic situation. This framework can support
the dynamic generation of adaptation workflows as well as the
recording of the adaptation history for analysis purposes. It is
also coupled with the CAMEL language which has been extended
to support the specification of cross-level adaptation workflows.