The focal concerns are Software-Intensive Autonomous Systems (SIAS). A SIAS is, by definition, any system where software influences, to a large extent, the design, construction, deployment, and evolution of the system as a whole. Some examples include computer-based systems ranging from individual software applications, information systems, embedded systems for automotive applications, telecommunications, wireless ad hoc systems, business applications with an emphasis on web services, software product lines and product families, cyberphysical systems, and systems-of-systems. This special issue only solicits and accepts papers whose major contributions are within the domain of autonomous software-intensive systems, and applications. These emerging software-intensive systems become more and more considered as autonomy enabling solutions in different ICT-related domains. However, their increasing complexity makes them difficult to design, develop and maintain, and rises many challenges for researchers, architects, and developers. On the one hand, they must meet very stringent guarantees of adaptiveness, flexibility, performance and reliability, both for business as well as for safety reasons. On the other hand, their development requires interaction between engineers from control system and software domains, whose differing backgrounds are often a source of confusion and misunderstanding. To master complex aspects of software-intensive systems, it is important to combine efforts from foundational research and recent engineering techniques that are based on mathematically well founded theories and approaches. The new methods should support the system life cycle including requirements, design, implementation, maintenance, reconfiguration and adaptation. This ensures the required levels of quality and trust, putting change and adaptation at all levels of system development. The development of a science of software-intensive systems, that are bridging the gap between pragmatic development techniques and foundational validation and verification methods, constitutes a new field to investigate. TOPICS OF INTEREST The aim of this special issue is to gather new contributions in functional and nonfunctional adaptability and reconfiguration management in Software-Intensive Autonomous Systems (SIAS). We are looking for high-quality submissions on the latest challenges, breakthroughs, and future trends. Topics of interest include, but are not limited to: Specification, modelling, and verification of SIAS. Service-oriented architectures for SIAS. Agent-based approaches for SIAS. Coordination of adaptation and reconfiguration in SIAS. Autonomous and distributed SIAS. Architecting and engineering SIAS. Programming environments for SIAS. Test and validation of SIAS. Scalability and performance modelling of SIAS. Reliability and availability methods for SIAS. Design techniques for SIAS. Design, implementation, and analysis of privacy. Security and QoS management solutions for SIAS. Tools and prototypes for managing adaptability of SIAS. Context-awareness for SIAS. Software-intensive autonomous systems of systems. Software-intensive autonomous cyberphysical systems. We invite the submission of high-quality papers describing original and significant work in the SIAS domain. We also encourage submission of extended papers from the workshop of Adaptive and Reconfigurable Systems and Architectures (AROSA 2020). Surveys and (Systematic) Literature Reviews are out of the scope of the special issue and will be desk-rejected. IMPORTANT DATES July 1, 2020 Full paper submission due November 1, 2020 First round notification February 28, 2021 Revised submission due April 15, 2021 Paper acceptance decision GUEST EDITORS Khalil Drira, LAAS-CNRS, Univ. Toulouse, France. Ismael Bouassida Rodriguez, ReDCAD, University of Sfax, Tunisia. Nesrine Khabou, ReDCAD-ENIS, University of Sfax, Tunisia. EDITORS IN CHIEF P. Avgeriou and D. Shepherd SPECIAL ISSUES EDITORS W.K. Chan and R. Mirandola SUBMISSION INFORMATION All manuscripts and any supplementary material should be submitted through the Elsevier Editorial System for the Journal of Systems and Software at http://ees.elsevier.com/jss/. Follow the submission instructions given on this site. Authors should select “VSI:SIAS” from the “Choose Article Type” pull-down menu during the submission process. All manuscripts should comply with the journal’s submission guidelines. Detailed author guidelines are available at http://www.elsevier.com/journals/journal-of-systems-andsoftware/0164-1212/guide-for-authors. Manuscripts must not have been published previously or be currently under consideration for publication in any other journal or conference. Extended versions of previous papers should be extended by at least 30% of new material different from the original work. DECISIONS Submissions will be reviewed by at least three experts in the field. The primary evaluation criteria are high-quality of the submission, innovative aspects in the domain of autonomous technology, software-intensive systems, and applications, practical applications of proposed idea(s), and thorough evaluation. The guest editors in consultation with the Editors In Chief and the Special Issues Editors will make final decisions.