System- and Software-level Architecting Harmonization Practices for Systems-of-Systems: An exploratory case study on a long-running large-scale scientific instrument

Hector Cadavid Rengifo*, Vasilios Andrikopoulos, Paris Avgeriou, P. Chris Broekema

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)
80 Downloads (Pure)


The problems caused by the gap between system- and software-level architecting practices, especially in the context of Systems of Systems where the two disciplines inexorably meet, is a well known issue with a disappointingly low amount of works in the literature dedicated to it. At the same time, organizations working on Systems of Systems have been developing solutions for closing this gap for many years now. This work aims to extract such knowledge from practitioners by studying the case of a large-scale scientific instrument, a geographically distributed radio telescope to be more specific, developed as a sequence of projects during the last two decades. As the means for collecting data for this study we combine online interviews with a virtual focus group of practitioners from the organization responsible for building the instrument. Through this process, we identify persisting problems and the best practices that have been developed to deal with them, together with the perceived benefits and drawbacks of applying the latter in practice. Some of our major findings include the need to avoid over-reliance on the flexibility of software to compensate for incomplete requirements, hidden assumptions, as well as late involvement of system architecting, and to facilitate the cooperation between the involved disciplines through dedicated architecting roles and the adoption of unifying practices and standards.
Original languageEnglish
Title of host publicationIEEE 18th International Conference on Software Architecture (ICSA)
Number of pages12
ISBN (Electronic)978-1-7281-6260-7
ISBN (Print)978-1-7281-6261-4
Publication statusPublished - 2021
Event18TH IEEE International Conference on Software Architecture - Stuttgart, Germany
Duration: 22-Mar-202126-Mar-2021


Conference18TH IEEE International Conference on Software Architecture
Abbreviated titleICSA 2021
Internet address


  • systems of systems
  • architecting
  • case study
  • scientific instruments
  • empirical software engineering

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