The DRA composition incorporates the essential elements needed to create DRA instances for deploying IoT-applications (and none IoT-apps) to the multi-cloud. The DRA composition is founded on the DRA characteristics, which were used to create a comprehensive reference architecture for deploying IoT applications (products) to the cloud/multi-cloud (infrastructure). The DRA composition integrates the DRA architectural models to create practical implementations (instances) that are applicable in the context of the organization. The DRA composition includes three main components: Resources, Configuration, and Output. The DRA implementation is a digital transformation of the DRA characteristics into software engineering elements (Design, Software, Pipeline, and Hardware).
