@article{10902/16385, year = {2019}, month = {4}, url = {http://hdl.handle.net/10902/16385}, abstract = {Smart cities are becoming a vibrant application domain for a number of science fields. As such, service providers and stakeholders are beginning to integrate co-creation aspects into current implementations to shape the future smart city solutions. In this context, holistic solutions are required to test such aspects in real city-scale Internet of Things (IoT) deployments, considering the complex city ecosystems. In this paper, we discuss OrganiCity's implementation of an experimentation-as-a-service (EaaS) framework, presenting a toolset that allows developing, deploying, and evaluating smart city solutions in a one-stop shop manner. This is the first time such an integrated toolset is offered in the context of a large-scale IoT infrastructure, which spans across multiple European cities. We discuss the design and implementation of the toolset, presenting our view on what EaaS should provide, and how it is implemented. We present initial feedback from 25 experimenter teams that have utilized this toolset in the OrganiCity project, along with a discussion on two detailed actual use cases to validate our approach. Learnings from all experiments are discussed as well as architectural considerations for platform scaling. Our feedback from experimenters indicates that EaaS is a viable and useful approach.}, organization = {The authors would like to thank the experimenter teams and volunteers who participated in OrganiCity}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, publisher = {IEEE Internet of Things Journal, 2019, 6(2), 2563-2572}, title = {Advancing experimentation-as-a-service through urban IoT experiments}, author = {Amaxilatis, Dimitrios and Boldt, Dennis and Choque Ollachica, Johnny and Díez Fernández, Luis Francisco and Gandrille, Etienne and Kartakis, Sokratis and Mylonas, Georgios and Vestergaard, Lasse Steenbock}, }