DUSTDAR , Schahram

In the past, elasticity and commitment in business processes were underexplored. But as businesses increasingly exploit pay-per-use resources in the cloud for on-demand needs, elasticity and commitment have become important issues. Here, the authors discuss the value of using elastic resources and commitments to create more dynamic...

Smart contracts provide computation facilities to blockchains, enabling many application scenarios where au tomatic analysis and complex transactions can be performed. However, in situations where the flow of information is variable and there are time, quality, and/or cost constraints imposed, smart contracts do not usually offer enough...

In this paper, we deal with questions related to blockchains in complex Internet of Things (IoT)-based ecosystems. Such ecosystems are typically composed of IoT devices, edge devices, cloud computing software services, as well as people, who are decision makers in scenarios such as smart cities. Many decisions related to analytics can be...

In this paper, we deal with questions related to blockchains in complex Internet of Things (IoT)-based ecosystems. Such ecosystems are typically composed of IoT devices, edge devices, cloud computing software services, as well as people, who are decision makers in scenarios such as smart cities. Many decisions related to analytics can be based...

In this visionary article, we present the concept of federated accountability, an innovative approach that distributes accountability-related computation and data across the computer continuum. To demonstrate the feasibility and versatility of our approach, we developed a prototype using blockchain technology that serves as a tangible...

As technology resonates in all layers of society, the impulse of shifting toward new spaces for a cooperative economy can be envisioned. Smart cities repre-sent an ideal laboratory to design and explore new opportunities, offering a significant impact to citizens' lives.

In cloud service provisioning scenarios with a changing demand from consumers, it is appealing for cloud providers to leverage only a limited amount of the virtualized resources required to provide the service. However, it is not easy to determine how much resources are required to satisfy consumers expectations in terms of Quality of Service...

Blockchain technology offers a sizable promise to rethink the way interorganizational business processes are managed because of its potential to realize execution without a central party serving as a single point of trust (and failure). To stimulate research on this promise and the limits thereof, in this article, we outline the challenges and...