CHOReOS Middleware Specification (D3.1)

This deliverable specifies the main concepts of the CHOReOS middleware architecture. Starting from the Future Internet (FI) challenges for scalability, heterogeneity, mobility, awareness, and adaptation that have been investigated in prior work done in WP1, we introduce the aforementioned concepts to deal with the requirements derived from the FI challenges. In particular, we propose an extensible and scalable service discovery approach for the organization and discovery of services that relies on multiple service discovery protocols. Moreover, we introduce an extensible and scalable approach, based on the service bus paradigm, for service access that features the integration and adaptation of multiple interaction protocols. Furthermore, we propose solutions that enable the execution of FI service compositions that range from compositions of choreographed services, developed according to the CHOReOS development process, to massive compositions of things. Finally, we detail the Cloud & Grid middleware facilities that support the overall middleware and the choreographies that are built on it, via a unified API that provides access to multiple cloud infrastructures (e.g., Amazon EC2, HP Open Cirrus, private clouds)

CHOReOS Dynamic Development Model Definition (D2.1)

The Future Internet envisions a ubiquitous world where available services can be easily discovered and coordinated so as to fit users needs. Service choreographies will play a central role in this vision as an effective means to allow heterogeneous services to suitably collaborate. This deliverable defines the CHOReOS Dynamic Development Process Model by refining and completing the artefacts/ activities and the relationships among them already sketched into the DoW (under the WP2 description), and conceptualized by the the CHOReOS conceptual model [CHO11b]. The process model is an abstract and simplified description of what will be the actual CHOReOS software development process to be defined at M24. The process model describes the "strategy" to be used during the choreography life cycle from design, to development, to maintenance (and hence from static, to runtime, to evolution). The model is made up of activities, common to (almost) every process, but structured in a particular way (i.e., the "CHOReOS way"), hence distinguishing the CHOReOS development process from others

CHOReOS State of the Art, Baseline, and Beyond (D1.1)

The D1.1 deliverable clarifies baseline, progress, and state of the art that CHOReOS will address. For each of the first four CHOReOS work packages, WP1 to WP4, this deliverable gives a precise definition of the state of the art, an indication of the envisaged progress beyond the state of the art by CHOReOS and the baseline for its research