Karthikeyan Ponnalagu

Learn More
Existing web service composition and adaptation mechanisms are limited only to the scope of web service choreography in terms of web service selection/invocation vis-à-vis pre-specified Service Level Agreement constraints. Such a scope hardly leaves ground for a participating service in a choreographed flow to readjust itself in terms of changed non(More)
Typically in collaborative cloud systems, the collaborations are formed based on pre-negotiated terms and conditions. Care is taken to ensure that the resources are planned in such a way so as to satisfy the SLA requirements. However, these static collaborations pose certain challenges in the long run, which arise due to the changes in quality of resources(More)
Software service organizations typically develop custom solutions from scratch in each project engagement. This is not a scalable proposition, since it depends too heavily on labor alone. Rather, creating and reusing software "assets" is more scalable and profitable. One prevalent approach to building software solutions is to use service-oriented(More)
SOA-based solutions are typically modeled as business processes composed of loosely coupled services. Such an approach promises the flexibility to more easily customize the solution functionality in line with constantly changing customer requirements. The research issue that we address in this paper, therefore, is how to best accomplish this customization.(More)
One of the crucial research issues in an IoT-based system is how to manage the huge amount of data transmitted by the potentially large number of sensors that form the system. Prior research has focused on centralized cloud-based "Big Data" architectures for collecting, collating and analyzing the data. However, most of these scenarios accumulate thousands(More)