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Preface
This volume contains the papers presented at IWESQ 2020: 2nd International
Workshop on Experience with SQuaRE series and its Future Direction held on
December 1, 2020 in Singapore (actually held online for the situation of COVID-
19).
    There were 13 submissions. Each submission was reviewed by three program
committee members. The committee decided to accept 10 papers (including four
position papers). The program includes two invited talks, but they are also
reviewed similarly to the regular papers. Its acceptance rate is 71.4%.
    The ISO/IEC 25000 (Systems and Software Quality Requirements and Eval-
uation: SQuaRE) series is a set of international standards for systems and soft-
ware, data and IT service quality, which has been widely used for a couple of
decades. In the research field, it have been also examined as a tool for performing
various analyses and evaluations on systems and software quality.
    The 2nd International Workshop on Experience with SQuaRE series and its
Future Direction (IWESQ 2020) aims at sharing such research outcomes and
issues, and experience of practical applications of the SQuaRE series, in order
to promote much more fruitful research and practice for quality systems and
software products.
    Furthermore, we gratefully acknowledge the professional work of the inter-
national program committee members, who have contributed substantially with
their highly qualified referee reports.
    In addition, we owe great thanks to the APSEC conference organization
members for their dedication and professionalism in taking care of the many
aspects of conference management.
    Moreover, we would like to thank the developers and other professional staff
of EasyChair.org, who made it possible for us to use the resources of this excel-
lent and comprehensive conference management system, from the call of papers
and inviting reviewers, to handling paper submissions, communicating with the
authors, and creating the online volume of the conference proceedings.
    We also want to thank all presenters and attendees for actively contributing
to the success of IWESQ 2020. We are looking forward to excellent presenta-
tions and fruitful discussions, which will broaden our professional horizons. All
participants are invited to make new friends within the community of SQuaRE
users.


December 30, 2020                                                      PC chair
Tokyo                                                         Tsuyoshi Nakajima




                                        v
Table of Contents
Quality Characteristics of Artificially Intelligent Systems . . . . . . . . . . . . . . .                             1
  Adam Leon Smith and Raphaël Clifford

Establishing International Standards for Systems and Software Quality
Reqirements and Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            7
   Toshihiro Komiyama and Motoei

Coverage Analysis Method Using Quality Characteristics . . . . . . . . . . . . . . .                                 12
   Daiju Kato and Hiroshi Ishikawa
Quality Evaluation and Testing Method of Industrial Application
Based on ISO/IEC 25000 SQuaRE Standard . . . . . . . . . . . . . . . . . . . . . . . . .                             16
   Xiuming Yu, Wenpeng Li, Yangyang Zhang and Zengzhi Liu

ISO/IEC 25000 quality measures for A.I.: a geometrical approach . . . . . . .                                        20
   Andrea Trenta

Possible Extension of ISO/IEC 25000 Quality Models to Artificial
Intelligence in the Context of an International Governance . . . . . . . . . . . . .                                 22
   Domenico Natale

Quality in Use -Issues and Proposal- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                 25
  Shin’Ichi Fukuzumi, Noriko Wada and Nowky Hirasawa

Retrofitting Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   28
   Raúl Martinez

About the Framework of Quality Evaluation Using SQuaRE . . . . . . . . . . . .                                       30
  Tsuyoshi Nakajima

Analysis for Blockchain Application Quality . . . . . . . . . . . . . . . . . . . . . . . . . .                      35
  Jiajin Xu, Huan Zhang and Jiayu Gong




                                                           vi
Program Committee

Lizhi Cai            Shanghai Key Laboratory of Computer Software
                     Evaluating & Testing
Bill Curtis          CAST
Shinichi Fukuzumi    RIKEN
Hyunchong Kim        TTA
Toshihiro Komiyama   NEC Corporation
Raúl Martı́nez      IRAM
Mohd-Khaizul-Azhar   Malaysian Software Testing Board
Mohd-Yusof
Tsuyoshi Nakajima    Shibaura Institute of Technology
Domenico Natale      AgID
Yukio Tanitsu        ITSCJ
Andrea Trenta        TIM
Noriko Wada          Yamanashi Eiwa college
Yangyang Zhang       China Electronics Standardization Institute




                              vii

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