Automated Techniques for Mapping Domain-level QoS Requirements to Middleware-specific QoS Configurations∗

Contemporary middleware platforms provide a high degree of flexibility and configurability to support a large class of distributed systems found in a variety of domains, such as avionics, automotive, financials, healthcare and defense. Realizing the quality of service (QoS) properties of these systems requires mapping the domain-specific QoS requirements of these systems to the right set of configuration options of the middleware platforms. This poses a substantial challenge for the system developers who are experts in the domain but not in the middleware. Automated graph transformation techniques provide a promising approach to address these challenges. This paper describes an automated model-driven graph transformation toolchain for QoS Mapping (GT-QMAP) that uses (1) model-driven engineering to capture system QoS requirements at domain-level abstractions, and (2) model transformations to automate the mapping of domainspecific QoS requirements to middleware-specific QoS options. We demonstrate GT-QMAP in the context of a representative NASA distributed system.