Abstract. The goal of this roadmap paper is to summarize the state-ofthe-art and to identify critical challenges for the systematic software engineering of self-adaptive systems. The paper is partitioned into four parts, one for each of the identified essential views of self-adaptation: modelling dimensions, requirements, engineering, and assurances. For each view, we present the state-of-the-art and the challenges that our community must address. This roadmap paper is a result of the Dagstuhl Seminar 08031 on "Software Engineering for Self-Adaptive Systems, " which took place in January 2008.

No abstract

Abstract-One of the major challenges in the provision of distributed systems is the accommodation of evolutionary change. This may involve modifications or extensions to the system which were not envisaged at design time. Furthermore, in many application domains there is a requirement that the system accommodate such change dynamically, without stopping or disturbing the operation of those parts of the system unaffected by the change. Since the description of software structure (components and interconnections) provides a clear means for both system comprehension and construction, it seems appropriate that changes should also be specified as structural change, in terms of component creation /deletion and connection/disconnection. These changes are then applied to the operational system itself to produce the modified system. This paper presents a model for dynamic change management which separates structural concerns from component application concerns. This separation of concerns permits the formulation of general structural rules for change at the configuration level without the need to consider application state, and the specification of application component actions without prior knowledge of the actual structural changes which may be introduced. In addition, the changes can be applied in such a way as to leave the modified system in a consistent state, and cause no disturbance to the unaffected part of the operational system. The model is applied to an example problem, "evolving philosophers." The principles described in this model have been implemented and tested in the Conic environment for distributed systems.

Abstract. The goal of this roadmap paper is to summarize the stateof-the-art and identify research challenges when developing, deploying and managing self-adaptive software systems. Instead of dealing with a wide range of topics associated with the field, we focus on four essential topics of self-adaptation: design space for self-adaptive solutions, software engineering processes for self-adaptive systems, from centralized to decentralized control, and practical run-time verification & validation for self-adaptive systems. For each topic, we present an overview, suggest future directions, and focus on selected challenges. This paper complements and extends a previous roadmap on software engineering for self-adaptive systems published in 2009 covering a different set of topics, and reflecting in part on the previous paper. This roadmap is one of the many results of the Dagstuhl Seminar 10431 on Software Engineering for Self-Adaptive Systems, which took place in October 2010.