This is a summary of the Swisscom/IMD joined research paper, introducing the Smart City piano framework. This presentation summarizes the following key findings: - What is a smart city? - What are the main reasons to become smart? - What are the key success factors to take care off? - The Smart City piano framework The full report can be downloaded under http://scm.to/01NM. Our second report that will be published in April 2017, is providing a strategic six-step methodology and practical advices to city leaders and other stakeholders on how to define, select and implement the most promising smart city projects.