| Presentation | 2018-07-06 [Encouragement Talk] Scope Expansions and Component-based Architecture Design of Operational Smart-Contract for Permissioned Blockchain System 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) characterized with smart-contract (SC), where business transactions among inter-authorized companies (forming consortium) can automatically be executed based on distributed consensus protocol over business logics pre-defined with program codes. A single BC system will be built across multiple management domains having different operational policies, e.g., data center of each organization; this will trigger a problem that its system operations (e.g., backup) 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. Toward the production use of the proposed method, we also should solve the following issues: (a) to expand the scope not only to operational procedures but also to a series of operational processes (operational workflow) such as execution approval, schedule management, operational report, the evidence check, (b) to reduce the operational SC development cost for individual operational task. To solve the issues, in this report, we modeled a typical operational workflow of BC system, and designed the operational SC components applicable various operational processes by extracting common functions from the model. Reusing the common components could reduce operational SC development costs in a typical operational task scenario by 43%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Permissioned Blockchain / Operations Management / Smart Contract / Hyperledger Fabric |
| Paper # | ICM2018-18 |
| Date of Issue | 2018-06-28 (ICM) |
| Conference Information | |
| Committee | ICM |
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| Conference Date | 2018/7/5(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 Neomeit) / 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] Scope Expansions and Component-based Architecture Design of Operational Smart-Contract for Permissioned Blockchain System |
| 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 | 2018-07-06 |
| Paper # | ICM2018-18 |
| Volume (vol) | vol.118 |
| Number (no) | ICM-118 |
| Page | pp.pp.41-46(ICM), |
| #Pages | 6 |
| Date of Issue | 2018-06-28 (ICM) |