12. – 17. August 2018, Dagstuhl-Seminar 18332

Blockchain Technology for Collaborative Information Systems


Marlon Dumas (University of Tartu, EE)
Richard Hull (IBM TJ Watson Research Center – Yorktown Heights, US)
Jan Mendling (Wirtschaftsuniversität Wien, AT)
Ingo Weber (Data61, CSIRO – Sydney, AU)

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Blockchain technology enables an evolving set of parties to maintain a safe, permanent, and tamper-proof ledger of transactions without a central authority. This technology opens manifold opportunities to redesign Business-to-Business (B2B) collaborations in a wide range of fields, including supply chain, logistics, service agreements, healthcare, and Industry 4.0. Importantly, it can enable substantial efficiency gains in terms of cost and time it takes to set-up and perform collaborative processes, particularly in settings where there is a lack of trust between the parties involved in the collaboration. Traditionally, collaborative processes are executed by relying on trusted third-party providers such as Electronic Data Interchange (EDI) hubs or escrows. This centralized architecture creates entry barriers and hinders bottom-up innovation. Blockchains and smart contracts enable these processes to be executed in a distributed manner without delegating trust to central authorities nor requiring mutual trust between each pair of parties. Further, blockchain enables fine-grained access control, thus allowing multiple parties to selectively share their data with each other and to selectively grant permissions to perform transactions on these data.

While blockchain opens up new possibilities, it also raises a number of challenges because it requires us to re-think the way B2B collaborations are designed and implemented. In contrast to centralized collaborative processes, the transparent and decentralized nature of blockchains brings in new challenges related to compliance, control, and privacy, in addition to major scalability and performance challenges. This seminar brought together established and young researchers with forward-thinking industry representatives from both large and start-up companies, in order to establish a research roadmap for blockchain-based collaborative information systems, and to initiate concrete research collaborations between participants along this roadmap.

Summary text license
  Creative Commons BY 3.0 Unported license
  Marlon Dumas, Richard Hull, Jan Mendling, and Ingo Weber


  • Modelling / Simulation
  • Networks
  • Semantics / Formal Methods


  • Blockchain
  • Business process modeling
  • Information processing systems


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