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Reiner Braun

Reiner Braun

Reiner Braun is a senior researcher at the Herman Hollerith Centre (HHZ) at Reutlingen University. He completed his bachelor's degree in building physics at the HFT Stuttgart with a focus on theoretical building physics and acoustics. He also earned a Master's degree in building renovation at the Karlsruhe Institute of Technology (KIT). Prior to this, he worked for the Stuttgart University of Applied Sciences (HFT) as Managing Director of the Centre for Sustainable Energy Technology ( 

Mr Braun is head of the Smart City Living Lab, his research activities focus on the development of energy and mobility concepts for regions and cities, IoT networks, data analysis and the development of urban data models to characterise the relationship between the food, energy and water sectors. 

Building HHZ Böblingen
Room 128/1
Phone +49 7121 271 4103
Send e-mail »

Alexander Rossmann

Prof. Dr. Alexander Rossmann

Alexander Rossmann is Head of the Herman Hollerith Center and Professor for Digital Business Models at the Reutlingen University. Prior to this, he was a research associate at the Institute of Marketing at the University of St. Gallen and a 10-year member of the management team of a renowned consulting company. His research focuses on digital business, user experience, agile governance, smart cities and artificial intelligence.


Prof. Rossmann ist responsible for the master study of  Digital Business Management in cooperation with Knowledge Foundation @ Reutlingen University


Building HHZ Böblingen
Room 105
Phone +49 7121 271 4100
Fax +49 7121 271 90 4100
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Dieter Hertweck

Prof. Dr. Dieter Hertweck

Dieter Hertweck is professor of Service Science at the Faculty of Computer Science at the Reutlingen University. Prior to this, he was professor for business informatics and head of the electronic business institute at Heilbronn University, before he headed the Department of BPEM at the Research Center for Computer Science at KIT (FZI). Dieter Hertweck has taken a doctoral degree in businessinformatics in the research group of Prof. Helmut Krcmar. His research focuses on service science, IT management, process and knowledge management.

Building HHZ Böblingen
Room 127/3
Phone +49 7121 271 4106
Send e-mail »

Yusuf Bozkurt

Yusuf Bozkurt

Building HHZ Böblingen
Room 120
Send e-mail »

Jan Fauser

Jan Fauser

Building HHZ Böblingen
Room 128/2
Phone +49 7121 271 4101
Fax +49 7121 271 90 4101
Send e-mail »

Cities around the world are undergoing rapid change and are equally confronted with challenges to provide the resources most important for the population, such as food, energy and water, and to integrate them into material cycles to ensure socially balanced and economically productive communities. 

The Herman Hollerith Centre (HHZ) at Reutlingen University is dedicated to issues of the future, such as digitalisation and the associated changes in society. In order to tackle and solve these tasks, innovations are developed and tested in the context of the development of smart cities. The transfer of findings from research into applicable solutions is a central component of research at the HHZ. 

In the Smart City Living Lab (Living Lab = real lab), research is conducted together with local actors from politics, business and civil society in the field of Smart City. The Living Lab represents a user-friendly, real-world research environment in which research and development is carried out together with relevant actors. As a key difference to related user-centred research methods, the Living Lab stands out by empowering users to collaborate in an open development environment. 

This approach shifts the development of innovative products from the laboratory to the real world. Potential users can express their opinions on new products and services here as early as possible or test the first prototypes in everyday life. The Living Lab process generally focuses on the activities of co-creation, exploration, experimentation and evaluation, which are handled in the Living Lab by an interdisciplinary team. 

The partners of the Smart City Living Lab are the district of Böblingen and the towns and municipalities of the district. 

Digitale Zukunftskommune BW

The project "Digitale Zukunftskommune BW" ( is funded by the Ministry of the Interior, Digitalisation and Migration of the State of Baden-Württemberg as part of the state's digital@bw digitalisation strategy. In the pilot project, intelligent, citizen-relevant services for the multimodal use of means of mobility (e.g. traffic flow optimisation, smart parking, optimisation of public transport such as bus, S-Bahn, etc.) are developed and implemented as examples. 




In the Sensornerves_DR project, a service catalogue for sensor-based digital services (IoT services) and a digital platform suitable for exchanging the services will be created. The aim of the platform is to make open source best practice examples of IoT network services available to the actors of the Quatruple Helix in the Danube Region. This should trigger digital innovations in the area of business models, products/services and business processes. The best practice services required for this will be identified by experts of the Digitisation WG of PA8 in their countries and approved in joint editorial meetings. The platform should be set up in such a way that it is easy to copy success stories to other regions. The platform will start with the example of current IoT services in the area of LoRaWAN sensor networks (e.g. logistics services, industry 4.0-related services, traffic management services, environmental services, municipal services) and take over and bundle findings from existing communities, such as the TTN communities. 



Within the ÖkoTrans project, transformation processes to increase the share of organically produced food in out-of-home catering (AHV) are being investigated. In order to analyse the potential of the AHV in BW as a sales market for regional organic food and the complex interaction of the stakeholders involved along the value chain (including agriculture, distribution and logistics partners, processing companies, canteens), the regional value chains of organic agriculture are being modelled. In close cooperation with the stakeholder groups involved, key barriers are identified that currently hinder the expansion of organic farming in BW or the distribution of regional organic food in the AHV. Based on these findings, possible solutions will be developed together with key actors from the field and new business models will be designed that can advance organic farming in Baden-Württemberg. 


International Cooperations

The City as Lab 

is an international research network focusing on the interrelationships between food, energy and water (food-energy-water /FEW) for sustainable and resilient urban development. The network addresses the following topics: 

  • Establish and develop research directions for FEW topics where knowledge gaps currently exist; 
  • Develop consensus on a framework for integrated urban FEW infrastructure research; 
  • Create a network consortium to deepen existing collaborations; 
  • Develop a dynamic training programme for students from diverse backgrounds; 
  • ​​​​​​​Expand the network. 

The Research Coordination Network (RCN) is led by a team of five principal investigators from the US who coordinate a network of academic and non-academic institutions in the US and abroad. 

Cooperation between Reutlingen University and Concordia University 

The Smart City Living Lab cooperates with the Excellence Research Chair in Smart, Sutainable and Resilient Communities and Cities at Concordia University (, Montreal Canada.  Joint programmes are being developed for collaboration in the following areas: 

  • Joint research within the framework of interantional research projects 
  • Exchange of scientific information on areas and topics of mutual interest 
  • Exchange of lecturers and students 
  • Joint supervision of students 
  • Other academic cooperation, including publications 
  • ​​​​​​​Organisation of joint summer and winter schools