Adaptive Provisioning of Human Expertise in Service oriented System

Abstract

Web-based collaborations have become essential in today’s business environments. Due to the availability of various SOA frameworks, Web services emerged as the de facto technology to realize flexible compositions of services. While most existing work focuses on the discovery and composition of software based services, we highlight concepts for a people-centric Web. Knowledge-intensive environments clearly demand for provisioning of human expertise along with sharing of computing resources or business data through software-based services. To address these challenges, we introduce an adaptive approach allowing humans to provide their expertise through services using SOA standards, such as WSDL and SOAP. The seamless integration of humans in the SOA loop triggers numerous social implications, such as evolving expertise and drifting interests of human service providers. Here we propose a framework that is based on interaction monitoring techniques enabling adaptations in SOA-based socio-technical systems.

Existing System

Ecosystems comprising people and services that interact in different organizational units are difficult to model in a top-down manner. Challenges include, for example, changing interests and expertise of people, evolving interaction patterns due to dynamically changing roles of collaboration partners, or evolving community structures. Web services enable loosely-coupled cross-organizational collaborations. In particular, they provide the means to specify well-defined interfaces and let customers and collaboration partners use an organization’s resources through dedicated operations. However, offered resources are not restricted to information and software-based services. Also human expertise can be provided in a service-oriented manner. For that purpose, the Human-Provided Services (HPS) Framework enables human participation in a SOA environment.

Proposed System

We motivated the trend towards socio-technical systems in SOA. With the human user in the loop numerous concepts, including personalization, expertise involvement, drifting interests, and social dynamics become of paramount importance. Web standards showed ways to extend them to fit the requirements of a people-centric Web. We outlined concepts that let people offer their expertise in a service-oriented manner and covered the deployment, discovery and selection of Human-Provided Services. We aim at providing more fine-grained monitoring and adaptation strategies. Data types could be modified to reduce the number of available language options in the WSDL interface description and to restrict input parameters. Harnessing delegation patterns that involve various participants, a complex social network perspective is established in which connections are not only maintained between one client and an avatar, but also among avatars. This paper aims at addressing the following technical challenges found in mixed systems by applying Web services technologies and social network concepts: Service Avatar. This concept is used to represent human capabilities as services on the Web. A combination of WSDL and FOAF elements describe functional and non-functional properties. Personal Provisioning. Social aspects require personalized service provisioning by establishing peer-to-peer relations between clients and service providers on demand. Feedback-based Adaptation. Observing and analyzing annotated SOAP interactions enable context-aware customization of personal services.

Architecture