@inproceedings{discovery10078223, pages = {112--123}, booktitle = {2018 IEEE 26th International Requirements Engineering Conference (RE)}, note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, journal = {Proceedings - 2018 IEEE 26th International Requirements Engineering Conference, RE 2018}, publisher = {IEEE}, title = {On systems of systems engineering: A requirements engineering perspective and research agenda}, year = {2018}, month = {August}, url = {https://doi.org/10.1109/RE.2018.00021}, abstract = {The emergence of Systems of Systems (SoSs) and Systems of Systems Engineering (SoSE) is largely driven by global societal needs including energy-water-food nexus, population demographics, global climate, integrated transport, security and social activity. However, due to their scale, structural and functional complexity and emergent properties, these global spanning Cyber-Physical Systems of Systems are becoming increasingly complex and more difficult for current requirements engineering (RE) practices to handle. In this paper, we firstly introduce SoSE as an emerging discipline and key characteristics of SoSs. We then highlight the challenges that the RE discipline must respond to. We discuss some weaknesses of current RE techniques and approaches to cope with the complexity of SoSs. We then argue that there is a need for the global RE community to evolve current RE approaches and to develop new ways of thinking, new RE capabilities and possibly a new RE science as a key mechanism for addressing requirements engineering complexities posed by Systems of Systems. We then outline a requirements engineering perspective and research agenda that identifies 'top-10' research themes informed by a cluster of four Systems of Systems Engineering projects funded by the European Commission's Horizon 2020 research programme.}, author = {Ncube, C and Lim, SL}, keywords = {Requirements engineering , System of systems , Complexity theory , Stakeholders , Complex systems , Smart cities , Systems of Systems Engineering , Systems of Systems , Requirements Engineering Perspective , Research Agenda , Smart Cities , Cyber-Physical Systems , The Fourth Industrial Revolution} }