Towards a Goal Driven Task Personalization Specification Framework

Since its inception, Service Orientation allowed for distributed clients to invoke remote operations utilizing standardized protocols, programming paradigms and architectures. Furthermore, the problem of compiling complex service compositions, based on contextual information and user preferences, has been also extensively investigated by the research community. However, these techniques are mostly used within a single, or within coupled service domains that utilize predefined orchestration and composition service flows. In this paper, we propose an approach whereby service providers can specify complex service tasks as collections of goal model templates that can be instantiated and customized by the invoking clients. A reasoning process evaluates whether instantiated goals can be fulfilled based on the clients selections and consequently generates service flows that are compliant to the goal model and to the clients preferences. The major difference from existing context aware service computing frameworks is the introduction of a reasoning process that allows for the evaluation of various and possibly synergetic client goals and the on-time initiation and enactment of goal compliant service compositions. A proof of concept prototype has been implemented utilizing SOA technologies for service invocation and flow control.