Back in 2011, Vienna was the first German-speaking city aim in the city was related to energy concerns. Therefore, the that published open government data. Vienna has taken a data platform should show the purpose and the possibilities of clear stance regarding the use of digital technologies and integrating and presenting energy-relevant data. processing of data. It makes sure that people retain sovereignty over their private and personal data. Vienna City Council uses For example, among the three refurbishment projects selected digitalization in a targeted manner to drive innovation in the city by the authorities, consumption data is a point of interest. For and to attain its climate goals and compliance with the 2015 “the new construction of a gym of a school” (p. 24), data was Paris Agreement. collected before and after the renovation, in order to make a comparison between expectations of inhabitants and key Within the Austrian capital, digital technologies are considered dimensions of the project. to be a challenge that is faced by society as a whole and requires urgent and cautious policy intervention. Indeed, in a More generally, in Vienna, Municipal Department #34 has highly efficient and increasingly interconnected city, the City already implemented a monitoring system for numerous office Council and all the ecosystem of stakeholders put a focus on buildings, schools, and kindergartens as part of the building population needs while setting up digital platforms for active management system. For example, it is accepted that data is involvement across all social groups and communities. Safety, sent via sensors to different municipal departments, and finally security, and privacy are the three critical components of digital collected by Siemens. safety, and they define the data priorities set by Vienna’s smart city framework. Precisely, building data of enough quality is an essential basis for analyzing various aspects, such as refurbishment potential In a similar vein to the smart city platforms of Amsterdam (see and measures derived from it. Moreover, as part of an energy Chapter 2) and Barcelona (see Chapter 3), Vienna’s smart city assessment of the area by Energy Planning Department 20 platform is based on open-source software, and it publicizes all (MA20), “various building data sources have been blended and new project developments, centralizes critical information, and corrected. The energy demand and the estimated refurbishment encourages people to take part in governance. potential due to building age and other attributes can be calculated and analyzed. Furthermore, some parameters 7.1 Data management for buildings were calculated on the building block level to compare the demand with the potentials or show the aggregated renewable The example of data management for buildings can be used to possibilities” (https://www.smarter-together.eu/file-download/ illustrate data management within the city. The first defined use download/public/1019; pp.25-26). case in the city was related to energy concerns. Therefore, the data platform should show the purpose and the possibilities of The data platform offers the potential in the future to directly integrating and presenting energy-relevant data. integrate building data from a corresponding database. The City of Vienna is now developing a new Vienna Building and Housing In the EU Smarter Together Lighthouse Project, most initiatives Register. In the end, “this database could be integrated directly. concern energy, buildings, and mobility in a set of different If a combination with other data sources of the city of Vienna cities. In Vienna, a first project demonstration area is located is required for an analysis,” it will be done (Ibid., pp. 5 & 26). in the central part of the southeastern district of Simmering. 7.2 Data Management objectives In total, in line with the Vienna Smart City Framework Strategy, “21,000 inhabitants benefit from such project with To track the evolution of the digitalization process within the solutions within the fields refurbishment, energy, mobility city, the City Council has developed a set of precise objectives: and information and communication technologies” (Smarter • All processes will be digitalized by 2025. The focus of this Together). “Partnership includes all actors, from government digital infrastructure is to optimize energy and resource to citizens to business players and NGOs, where everyone has operation. The expansion of this digital infrastructure will a specific responsibility towards achieving the common goals” be undertaken in cooperation with all stakeholders, setting (Smarter Together). different organizational forms, including public-private partnerships (PPP). The city will use this data to support The data management for buildings can be used as an example decision making and have a real-time management system. to illustrate data management within the city. The first defined Data will be captured in many different ways and analyzed 217 Quélin and Smadja | HEC PARIS | SMART CITIES | The sustainable program of six leading cities | 2021