The GI/ITG International Conference on Architecture of Computing Systems (ARCS) looks back at more than 30 years of tradition in reporting high quality results in computer architecture as well as operating systems research. ARCS has become an important forum for research in these areas and has a long tradition of hosting associated workshops complementing the programme of the conference with specific topics extending the technical scope of the conference. This year, ARCS 2019 was organised at Technical University of Denmark, Copenhagen, Denmark, from May 20 to May 23, 2019. This year, the following workshops were held within ARCS: - 15th Workshop on Dependability and Fault Tolerance (VERFE’19) - 7th International Workshop on Self-optimisation in Organic and Autonomic Computing Systems (SAOS’19) - 4th Workshop of the Multi-Core Safe and Software-intensive Systems Improvement Community (FORMUS3IC)weiterlesen