Abstract: IoT systems are designed and implemented to address specific challenges based on domain specific requirements, thus not taking into consideration issues of openness, scalability, interoperability and use-case independence. As a result, they are less principled, vendor oriented and hardly replicable since the same IoT architecture cannot be used in more than one use-cases. To address the fragmentation of existing IoT solutions, the IoT-A project proposes an architecture reference model that defines the principles and standards for generating IoT architectures and promoting the interoperation of IoT solutions. However, IoT-A addresses the architecture design problem, and does not focus on whether existing cloud platforms can offer the tools and services to support the implementation of IoT-A compliant IoT systems. In this work we attempt to fill this gap and we propose an architectural approach based on IoT-A that focuses (as a use case) on the FIWARE open cloud platform that in turn provides the building blocks of Future Internet (FI) applications and services. We further correlate FIWARE and IoT-A approaches to identify the key features for FIWARE to support IoT-A compliant system implementations