Aggregation of Service Level Agreements in the Context of Business Processes
EDOC '08 Proceedings of the 2008 12th International IEEE Enterprise Distributed Object Computing Conference
COSMA --- An Approach for Managing SLAs in Composite Services
ICSOC '08 Proceedings of the 6th International Conference on Service-Oriented Computing
Future Generation Computer Systems
Rule-Based Workflow Validation of Hierarchical Service Level Agreements
GPC '09 Proceedings of the 2009 Workshops at the Grid and Pervasive Computing Conference
Aggregating Hierarchical Service Level Agreements in Business Value Networks
BPM '09 Proceedings of the 7th International Conference on Business Process Management
Service level agreements: web services and security
ICWE'07 Proceedings of the 7th international conference on Web engineering
SLA validation in layered cloud infrastructures
GECON'10 Proceedings of the 7th international conference on Economics of grids, clouds, systems, and services
SLA Validation of Service Value Chains
GCC '10 Proceedings of the 2010 Ninth International Conference on Grid and Cloud Computing
A protocol development framework for SLA negotiations in cloud and service computing
GECON'12 Proceedings of the 9th international conference on Economics of Grids, Clouds, Systems, and Services
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IT-based Service Markets require an enabling infrastructure to support Service Value Chains and service choreographies resulting from service composition scenarios. This will result into novel business models where services compose together hierarchically in a producer-consumer manner to form service chains of added value. Service Level Agreements (SLAs) are defined at various levels in such a hierarchy to ensure the expected quality of service for different stakeholders. Automation of service composition directly implies the aggregation of their corresponding SLAs. Aggregation of hierarchical SLAs leads to cross-enterprize business networks such as Virtual Enterprize Organizations (VEO), Extended Enterprizes and Value Networks. During the hierarchical aggregation of SLAs, certain SLA information pertaining to different stakeholders is meant to be restricted and can be only partially revealed to a subset of their business partners. Based on our notions of SLA Choreography and SLA-Views, we formally define an aggregation model to enable the automation of hierarchical aggregation of Service Level Agreements. The aggregation model leads to the discovery of various aggregation patterns in context with service composition and business collaboration.