Process Channels: A New Layer for Process Enactment Based on Blockchain State Channels

Fabian Stiehle, Ingo Weber

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

2 Zitate (Scopus)

Abstract

For the enactment of inter-organizational processes, blockchain can guarantee the enforcement of process models and the integrity of execution traces. However, existing solutions come with downsides regarding throughput scalability, latency, and suboptimal tradeoffs between confidentiality and transparency. To address these issues, we propose to change the foundation of blockchain-based process enactment: from on-chain smart contracts to state channels, an overlay network on top of a blockchain. State channels allow conducting most transactions off-chain while mostly retaining the core security properties offered by blockchain. Our proposal, process channels, is a model-driven approach to enacting processes on state channels, with the aim to retain the desired blockchain properties while reducing the on-chain footprint as much as possible. We here focus on the principled approach of state channels as a platform, to enable manifold future optimizations in various directions, like latency and confidentiality. We implement our approach prototypical and evaluate it both qualitatively (w.r.t. assumptions and guarantees) and quantitatively (w.r.t. correctness and gas cost). In short, while the initial deployment effort is higher with state channels, it typically pays off after a few process instances—considerably reducing cost. And as long as the new assumptions hold, so do the guarantees.

OriginalspracheEnglisch
TitelBusiness Process Management - 21st International Conference, BPM 2023, Proceedings
Redakteure/-innenChiara Di Francescomarino, Andrea Burattin, Christian Janiesch, Shazia Sadiq
Herausgeber (Verlag)Springer Science and Business Media Deutschland GmbH
Seiten198-215
Seitenumfang18
ISBN (Print)9783031416194
DOIs
PublikationsstatusVeröffentlicht - 2023
VeranstaltungProceedings of the 21st International Conference on Business Process Management , BPM 2023 - Utrecht, Niederlande
Dauer: 11 Sept. 202315 Sept. 2023

Publikationsreihe

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Band14159 LNCS
ISSN (Print)0302-9743
ISSN (elektronisch)1611-3349

Konferenz

KonferenzProceedings of the 21st International Conference on Business Process Management , BPM 2023
Land/GebietNiederlande
OrtUtrecht
Zeitraum11/09/2315/09/23

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