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Continuous and Flexible Sophistication and Evolution of Assured Multi-Level System Models

Research Project

Project/Area Number 17H01727
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Software
Research InstitutionNational Institute of Informatics

Principal Investigator

Ishikawa Fuyuki  国立情報学研究所, アーキテクチャ科学研究系, 准教授 (50455193)

Co-Investigator(Kenkyū-buntansha) 本位田 真一  早稲田大学, 理工学術院, 教授(任期付) (70332153)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsソフトウェア開発効率化・安定化 / 形式手法 / システムモデリング / 段階的詳細化 / Cyber-Physical Systems / ソフトウエア開発効率化・安定化
Outline of Final Research Achievements

A key challenge in software systems that work in the real word and society is to verify that requirements are satisfied by the combination of system specification and expected environments. There is an emerging approach to use multi-step models with different levels of abstraction to mitigate complexity of specification and verification. However, it is difficult to design multi-step models for consistency verification and also to continuously update without breaking the consistency. In this research work, we tackled to provide a methodology to gradually refine multi-step models by gradually constructing and combining partial specification models. We evaluated the effectiveness of the proposed methodology with scenarios of advanced autonomous systems.

Academic Significance and Societal Importance of the Research Achievements

多数の構成要素を含むソフトウェアシステム全体について安全性を一括で論じることは困難です.このため,単純な場合からはじめて,システムをとらえる抽象度(解像度)を少しずつ上げながら,安全性を論じていく方法があります.しかし,「単純な場合ではよかったが,この要素が入ると安全性保証がやり直しになる」ことが起きてしまいます.本研究では,「既存の安全性保証を壊さずに追加要素を加える」という技術を軸に,段階的に安全性の保証を論じる方法論を確立しました.これにより,ますます複雑になるソフトウェアシステムに対し,強力な安全性保証をより容易に行うことができるようになりました.

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (12 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (8 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Int'l Joint Research] IRIT(フランス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Waterloo(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Consistency-Preserving Refactoring of Refinement Structures in Event-B Models2019

    • Author(s)
      Tsutomu Kobayashi, Fuyuki Ishikawa, Shinichi Honiden
    • Journal Title

      Formal Aspects of Compupting

      Volume: Preprint Issue: 3 Pages: 287-320

    • DOI

      10.1007/s00165-019-00478-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Change Impact Analysis for Refinement-based Formal Specification2019

    • Author(s)
      Shinnosuke Saruwatari, Fuyuki Ishikawa, Tsutomu Kobayashi, Shinichi Honiden
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: To Appear

    • NAID

      130007686433

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Robustifying CPS Controller Specifications Against Perceptual Uncertainty2021

    • Author(s)
      Tsutomu Kobayashi, Rick Salay, Ichiro Hasuo, Krzysztof Czarnecki, Fuyuki Ishikawa, Shin-ya Katsumata
    • Organizer
      The 13th NASA Formal Methods Symposium (NFM 2021)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Embedding Approximation in Event-B: Safe Hybrid System Design using Proof and Refinement2020

    • Author(s)
      Guillaume Dupont, Yamine Ait Ameur, Neeraj Singh, Fuyuki Ishikawa, Tsutomu Kobayashi, Marc Pantel
    • Organizer
      The 22nd International Conference on Formal Engineering Methods (ICFEM 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ormal Distributed Protocol Development for Reservation of Railway Sections2020

    • Author(s)
      Paulius Stankaitis, Alexei Iliasov, Tsutomu Kobayashi, Yamine Ait-Ameur, Alexander Romanovsky, Fuyuki Ishikawa
    • Organizer
      The 7th International Conference on Rigorous State Based Methods (ABZ 2020)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis on Strategies of Superposition Refinement of Event-B Specifications2018

    • Author(s)
      Tsutomu Kobayashi, Fuyuki Ishikawa
    • Organizer
      The 20th International Conference on Formal Engineering Methods (ICFEM 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Construction of Abstract State Graphs for Understanding Event-B Models2017

    • Author(s)
      Daichi Morita, Fuyuki Ishikawa and Shinichi Honiden
    • Organizer
      Symposium on Dependable Software Engineering (SETTA 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Extracting Traceability between Predicates in Event-B Refinement2017

    • Author(s)
      Shinnosuke Saruwatari, Fuyuki Ishikawa, Tsutomu Kobayashi, Shinichi Honiden
    • Organizer
      The 24th Asia-Pacific Software Engineering Conference (APSEC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Refactoring Refinement Structure of Formal Specification in Event-B2017

    • Author(s)
      Tsutomu Kobayashi
    • Organizer
      The 6th Asian Workshop of Advanced Software Engineering (AWASE2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Emerging Challenges in Software Dependability under Uncertain World2017

    • Author(s)
      Fuyuki Ishikawa
    • Organizer
      The 1st International Conference on Advanced Information Technologies (ICAIT)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2022-01-27  

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