Presentation | 2019-03-07 [Encouragement Talk] Operational-Flow Smart-Contract to Support Inter-Organizational Cooparative System Operations for Permissioned Blockchain Tatsuya Sato, Yosuke Himura, Jun Nemoto, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Enterprises have paid attention to permissioned blockchain (BC), where business transactions among inter-authorized organizations (forming a consortium) can automatically be executed on the basis of a distributed consensus protocol. The BC has adopted the features of the smart contract (SC), which is programmable user-defined business logic deployed in BC and executed with the consensus protocol. A single BC-based system will be built across multiple management domains (e.g., data centers of each organization) having different operational policies; this will trigger a problem that its system operations (e.g., SC updates, taking snapshots) will become costly due to the difficulty in unifying and/or adjusting operational policy such as procedures, timing, etc., among management domains. To solve the problem, we have developed an operations execution method for BC systems; a primary idea is to define operations as SC (called operational SC) so that unified and synchronized cross-organizational operations can be executed effectively by using BC-native features. The method on the previous reports could only support typical operations which are executed in all organizations in parallel. However, actual cases require to perform more cooperative operations while sharing/exchanging information between organizations and nodes (e.g., organizations take turns executing a command). In this research, first we extracted cooperative operations patterns among inter-organizations. As the result, we listed up four operations of be executed (1) only by specific organizations, (2) waiting for previous tasks to end, (3) executed while switching organizations and (4) executed while sharing/exchanging information. Then, we designed new operational SC (named “operational-flow SC”) which supports their cooperative operations and implemented the prototype using Hyperledger Fabric. We also estimated the introduction effect of the operational-flow SC in the typical operations of SC updates. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Permissioned Blockchain / Operations Management / Smart Contract / Hyperledger Fabric |
Paper # | ICM2018-49 |
Date of Issue | 2019-02-28 (ICM) |
Conference Information | |
Committee | ICM |
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Conference Date | 2019/3/7(2days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | Kiyohito Yoshihara(KDDI Research) |
Vice Chair | Yoichi Yamashita(NTT-Neomait) / Takumi Miyoshi(Shibaura Inst. of Tech.) |
Secretary | Yoichi Yamashita(KDDI Research) / Takumi Miyoshi(NTT) |
Assistant | Yunchen Zhu(Hitachi) |
Paper Information | |
Registration To | Technical Committee on Information and Communication Management |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | [Encouragement Talk] Operational-Flow Smart-Contract to Support Inter-Organizational Cooparative System Operations for Permissioned Blockchain |
Sub Title (in English) | |
Keyword(1) | Permissioned Blockchain |
Keyword(2) | Operations Management |
Keyword(3) | Smart Contract |
Keyword(4) | Hyperledger Fabric |
1st Author's Name | Tatsuya Sato |
1st Author's Affiliation | Hitachi, Ltd.(Hitachi) |
2nd Author's Name | Yosuke Himura |
2nd Author's Affiliation | Hitachi, Ltd.(Hitachi) |
3rd Author's Name | Jun Nemoto |
3rd Author's Affiliation | Hitachi, Ltd.(Hitachi) |
Date | 2019-03-07 |
Paper # | ICM2018-49 |
Volume (vol) | vol.118 |
Number (no) | ICM-483 |
Page | pp.pp.1-6(ICM), |
#Pages | 6 |
Date of Issue | 2019-02-28 (ICM) |