Blockchain and Services – Exploring the Links
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Blockchain is a novel distributed ledger technology which has attracted a wide range of interests for building the next generation of applications. The broad range of blockchain applications is made possible by so-called smart contracts, which transform a blockchain system into a general compute platform. As a new paradigm and technology platform in the integration space, this bears the question to which degree there is a connection to services, and in how far lessons learned on services can be applied to Blockchain.
In the talk, I explored four different facets of this topic, as follows. First, application-level service interfaces for interaction with blockchain-based applications enable easy integration with existing infrastructure. Second, service composition can be achieved through smart contracts, and enable different approaches to orchestrations and choreographies. Third, Blockchain-aaS offerings cover infrastructure operation, but the idea presents further possibilities. And finally, some principles for designing SOA services and microservices can be applied to smart contract design.
KeywordsBlockchain Smart contracts Software architecture Software engineering Business process management
My thanks for feedback and insightful discussions go to the audience at the symposium, as well as my colleagues Mark Staples, Hugo O’Connor, Hye-young Paik, Dilum Bandara, and Liming Zhu.
- 5.López-Pintado, O., García-Bañuelos, L., Dumas, M., Weber, I.: Caterpillar: a blockchain-based business process management system. In: BPM 2017: International Conference on Business Process Management, Demo Track, Barcelona, Spain, September 2017Google Scholar
- 7.Newman, S.: Building Microservices. O’Reilly Media, Sebastopol (2015)Google Scholar
- 9.Release, G.P.: Gartner survey reveals the scarcity of current blockchain deployments, May 2018. https://www.gartner.com/newsroom/id/3873790. Accessed 4 May 2018
- 10.Rimba, P., Tran, A.B., Weber, I., Staples, M., Ponomarev, A., Xu, X.: Comparing blockchain and cloud services for business process execution. In: ICSA 2017: IEEE International Conference on Software Architecture, short paper, Gothenburg, Sweden, April 2017Google Scholar
- 11.Rimba, P., Tran, A.B., Weber, I., Staples, M., Ponomarev, A., Xu, X.: Quantifying the cost of distrust: comparing blockchain and cloud services for business process execution. Inf. Syst. Front. (2018) Google Scholar
- 12.Subramanian, S.: Microservices design principles. DZone, July 2015. https://dzone.com/articles/microservices-design-principles. Accessed 28 Mar 2019
- 13.Tran, A.B., Lu, Q., Weber, I.: Lorikeet: a model-driven engineering tool for blockchain-based business process execution and asset management. In: BPM 2018: International Conference on Business Process Management, Demo Track, September 2018Google Scholar
- 15.Weber, I., et al.: On availability for blockchain-based systems. In: SRDS 2017: IEEE International Symposium on Reliable Distributed Systems, Hong Kong, China, pp. 64–73, September 2017Google Scholar
- 16.Weber, I., Xu, X., Riveret, R., Governatori, G., Ponomarev, A., Mendling, J.: Untrusted business process monitoring and execution using blockchain. In: La Rosa, M., Loos, P., Pastor, O. (eds.) BPM 2016. LNCS, vol. 9850, pp. 329–347. Springer, Cham (2016). https://doi.org/10.1007/978-3-319-45348-4_19CrossRefGoogle Scholar
- 17.Xu, X., Pautasso, C., Zhu, L., Lu, Q., Weber, I.: A pattern language for blockchain-based applications. In: EuroPLoP 2018: European Conference on Pattern Languages of Programs, Kloster Irsee, Germany, July 2018Google Scholar
- 19.Xu, X., et al.: A taxonomy of blockchain-based systems for architecture design. In: ICSA 2017: IEEE International Conference on Software Architecture, Gothenburg, Sweden, April 2017Google Scholar
- 20.Yasaweerasinghelage, R., Staples, M., Weber, I.: Predicting latency of blockchain-based systems using architectural modelling and simulation. In: ICSA 2017: IEEE International Conference on Software Architecture, short paper, Gothenburg, Sweden, April 2017Google Scholar