TSCCM; A new model for Manual Service Composition
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- Master's theses (TN-IDE) 
Intercloud approach introduces new opportunities to improve the performance and to increase the utilization of distributed simulation systems in cloud computing. These improvements also imply significant reduction both in the initial investment and operations/maintenance costs of IT infrastructure. In last few years, computer resources are considered as services and the service oriented computing has become popular. Service providers offer resources as services. Collaboration among the services is necessary to fulfill user requirements effectively. Provision of different services has highlighted the use of manual service composition. Service composition creates new services which are used to resolve complex problems with the reduction in consumer cost. Introduction of trustworthy service composition in cloud computing brings up several challenges. Changing cloud environment is a big challenge to offer services as a resource and even it makes service composition difficult, other than this, Users have QoS requirements and trust is one of the most vital factor. User trust shouldn’t be broken. Trust should be considered as an important aspect in service collaboration and emphasizes should be given on building trust among the service providers and with the subscribers. Emergence of service usage has brought up several challenges which needs to deal in order to make service oriented computing successful. Now days, thousands of vendors are in market and it’s not easy to present every resource as a service. We have discuss some service composition challenges which should be resolved. Service oriented computing has emphasize on service interaction because individual services are not always useful to provide complete solution of some problems. We need to compose services in order to solve more complex problems. A service composition requires good service interaction among the services within the same pool. Successful service composition depends on the trust factor. Bearing in mind the importance of Trust in cloud architecture, we have discussed the challenges and factors which can affect the trust. This master thesis addresses emerging challenges in service composition and trust in Intercloud and proposes a new model for trustworthy manual service composition. Trustworthy Service composition model can effectively be used to compose and build trust among the services involved in composition process and improves the interaction among the services.
Master's thesis in Computer science