D.A3a SLA-aware Service Management
SLA@SOI aims at addressing the SLA management problem from a holistic perspective. The objective is to design a multi-layer SLA management framework for SOA based application landscapes. The focus of work package A3 is the software service layer and aims at designing SLA aware service management capabilities for the overall SLA management framework. In this regard, WP A3
has divided the service management into a number of distinct yet complementary and interconnected working tracks. This deliverable document provides description of the activities, progress and achievements during the course of Y1.
Since, the overall direction of Y1 activities within SLA@SOI was ORC based adhoc demonstrator, focus of A3 activities was also restricted to the adhoc demonstrator. A brief summary of these activities are given in the following paragraph.
Firstly, A3 engaged in modelling related activities. The modelling aspects addressed were SOA modelling and software landscape modelling. SOA modelling investigated modelling of service component along with the non-functional properties as well as the service component behaviour which is leveraged by the design time prediction process. Software landscape modelling, on the other hand focused designing a meta-model which can be used to capture information about the service and software related artefacts. Additionally, landscape meta-model incorporated packaging and deployed related aspects to be used by service
provisioning process.
Secondly, A3 focused on dynamic service binding and composition related activities. The scope of this activity was to enable compositions in dynamic and changing environment where service compositions are performed during runtime and bindings are carried out driven by SLAs and quality of service guarantees.
Last but not least, A3’s work focused on runtime monitoring and management of SOA based application landscapes. An event based non-intrusive monitoring approach was adopted within A3 with an objective of monitoring atomic services, composite process as well as composition engines. Additionally, analysis and event correlation was also investigated for SLA violation detection purposes. On the manageability front, A3 pursued the design of a unified manageability infrastructure with special emphasis on unified manageability interface to enable management application to retrieve monitoring information as well as for control
the elements being managed. Additionally, efforts were conducted to enable autonomic behaviour to the manageability infrastructure.
