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Title:
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BLOCKCHAIN BASED CROSS ORGANIZATIONAL
WORKFLOW MANAGEMENT SYSTEM |
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Author(s):
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Hirofumi Nagano, Taku Shimosawa, Atsushi Shimamura and Norihisa Komoda |
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ISBN:
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978-989-8704-24-5 |
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Editors:
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Hans Weghorn |
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Year:
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2020 |
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Edition:
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Single |
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Keywords:
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Business Process, Workflow, Blockchain, System Security |
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Type:
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Full |
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First Page:
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97 |
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Last Page:
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104 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Currently most of the workflows in enterprise business processes are implemented and managed as information system.
However, workflows between organizations are still processed manually based on paper document because it is difficult
for the organizations to trust the process and the result of workflow in the system which is provided by one of the
organizations or a third-party organization. In this paper, a system architecture for cross organizational workflow
management utilizing blockchain technology is proposed. It eliminates every Single Point of Trust (SPoT) which causes
falsification risk of the process and data. Our proposed system architecture accommodates two types of smart contracts
for workflow definition and workflow processing, which validates related data in every transaction. By this architecture,
each organization can be aware of the data falsification when the data on one of the organization nodes is falsified by a
malicious workflow administrator or a system administrator. Through evaluation of the falsification risks based on the
attack scenarios along workflow life cycle, it is confirmed that all the risks are avoided by the proposed system
architecture. |
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