Adding semantics to software-as-a-service and cloud computing

The Web is evolving from a mere repository of information to a new platform for business transactions and information interchange. Large organizations are increasingly exposing their Business Processes through Web Services Technology for the large-scale development of software, as well as for the sharing of their services within and outside the organization. New paradigms for Software and Services Engineering such as the Software-asa-Service (SaaS) and the cloud computing model promise to create new levels of efficiency through large-scale sharing of functionality and computing resources. However, there are few academic works in this area and many gaps are still open. In this paper, we present a Business Process based on Semantics platform where services are executed from a SaaS perspective. The SITIO platform allows external developers to create add-on applications that integrate into the main SITIO application and are hosted on Cloud Computing infrastructure.