International audienceThe term model-driven engineering (MDE) is typically used to describe software development approaches in which abstract models of software systems are created and systematically transformed to concrete implementations. In this paper we give an overview of current research in MDE and discuss some of the major challenges that must be tackled in order to realize the MDE vision of software development. We argue that full realizations of the MDE vision may not be possible in the near to medium-term primarily because of the wicked problems involved. On the other hand, attempting to realize the vision will provide insights that can be used to significantly reduce the gap between evolving software complexity and the technologies used to manage complexity

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Developers of modern software systems are often required to build software that addresses security, fault-tolerance and other dependability concerns. A decision to address a dependability concern in a particular manner can make it difficult or impossible to address other concerns in software. Proper attention to balancing key dependability and other concerns in the early phases of development can help developers better manage product risks through early identification and resolution of conflicts and undesirable emergent behaviours that arise as a result of interactions across behaviours that address different concerns. The authors describe an aspectoriented modelling (AOM) approach that eases the task of exploring alternative ways of addressing concerns during software modelling. The paper focuses on use of the AOM approach to produce logical, aspect-oriented architecture models (AAMs) that describe how concerns are addressed in technology-independent terms. An AAM consists of a set of aspect models and a base architecture model called the primary model. An aspect model describes how a dependability concern is addressed, and a primary model describes how other concerns are addressed. Composition of the aspect and primary models in an AAM produces an integrated view of the logical architecture described by the AAM. Composition can reveal conflicts and undesirable emergent properties. Resolving these problems can involve developing and analysing alternative ways of addressing concerns. Localising the parts of an architecture that address pervasive and nonorthogonal dependability concerns in aspect models allows developers to more easily evolve and replace the parts as they explore alternative ways of balancing concerns in the early stages of development.

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao. Abstract. Although model-driven engineering (MDE) is now an established approach for developing complex software systems, it has not been universally adopted by the software industry. In order to better understand the reasons for this, as well as to identify future opportunities for MDE, we carried out a week-long design thinking experiment with 15 MDE experts. Participants were facilitated to identify the biggest problems with current MDE technologies, to identify grand challenges for society in the near future, and to identify ways that MDE could help to address these challenges. The outcome is a reflection of the current strengths of MDE, an outlook of the most pressing challenges for society at large over the next three decades, and an analysis of key future MDE research opportunities.