3rd International Workshop on Requirements Engineering for Self-Adaptive & Cyber Physical Systems Marian Daun marian.daun@paluno.uni-due.de 0 4 Bastian Tenbergen bastian.tenbergen@oswego.edu 0 2 Cristina Palomares cpalomares@essi.upc.edu 0 3 Alessia Knauss alessia.knauss@chalmers.se 0 1 - Bournemouth University, UK - Airbus Defence and Space, Germany - University of Duisburg-Essen, Germany - University of Twente, Netherlands - Robert Bosch GmbH, Germany - Blekinge University, Sweden - Universitat Politècnica de Catalunya, Spain - Johannes Keppler University, Austira - Federal University of Espírito Santo , Brazil Department of Computer Science and Engineering, Chalmers University , Sweden Department of Computer Science, State University of New York at Oswego , USA Universitat Politècnica de Catalunya , Barcelona , Spain paluno - The Ruhr Institute for Software Technology, University of Duisburg-Essen , Germany

With increasing connectivity and communication between highly-automated systems, systems become more context-dependent and allow for online adaptation at runtime. There are two classes of such systems: Self-Adaptive Systems (SAS) and Cyber Physical Systems (CPS). While the term “self-adaptive” typically refers to any kind of system which alters its behavior (e.g., service-based systems or information systems), the term “cyber physical” is often used to describe special properties of embedded systems which communicate and dynamically interconnect with one another. Behavioral adaptation and runtime interconnection pose new challenges for the development process, and ad-hoc physical networking and emergent functionality must be systematically engineered and validated in early phases of development, i.e. during requirements engineering. The International Workshop on Requirements Engineering for Self-Adaptive and Cyber Physical Systems is a platform to investigate this impact.

 Introduction

identify threats to privacy. According to some discussants, systems may strategically ask for user involvement, e.g., when privacy settings etc. are violated. 3

 Summary of RESACS 2017

In this year’s workshop program, papers place focus on the model-based engineering of SAS and CPS. In the research paper by J. Muñoz-Fernández, A. Knauss, L. Castaneda, M. Derakhshanmanesh, and R. Heinrich [1], it is proposed to capture ambiguity within engineering artifacts to foster requirements engineering. In [2], A. Vasenev, D. Ionita, T. Zoppi, A. Ceccarelli, and R. Wieringa elaborate on the defining security requirements by taking iconicity of informal modeling languages in account. W. Shanaa, S. Spier, and B. Tenbergen present in [3] a case study on model-based requirements engineering of an avionics CPS and investigate the impact of challenges prescribed by literature. In addition to the peer-reviewed papers, F. Houdek and S. Schmerler, from Daimler AG, gave an interesting and enjoyable talk on autonomous driving, its implications and future challenges on requirements engineering [4]. 4 § § § § § § § § §

 Workshop Technicalities

Once again, each paper was reviewed by at least three members of the program committee. The reviews focused on the soundness of the presented ideas, the technical quality of the manuscripts, and their suitability with regard to the scope of the workshop. We, the organizers, would like to place particular emphasis on the extraordinarily high quality of the reviews, which were critical, yet constructive, and lead to accepting a total of three full papers. We are indebted to the program committee members: