Service-Oriented and Cloud Computing: 7th IFIP WG 2.14 European Conference, ESOCC 2018, Como, Italy, September 12-14, 2018, Proceedings

The wide spread use of computing devices, such as smart phones, cameras, and sensors results in abundance of available information. When such information flows occur in a specific place, at a certain time, and with the participating entities working together or sharing information to achieve common goals, we refer to the outcome of an opportunistic collaboration. In this paper we define and analyse this new collaboration domain and present a framework through which opportunistic collaboration services can be provisioned. We describe in detail the processes that the framework supports, including the modeling of opportunistic collaborations, the collaboration service creation, and the participation management. We evaluate the framework through a use case scenario in the context of participatory journalism in high-profile