Models@ Run.time to Support Dynamic Adaptation

Morin, Brice; Barais, Olivier; Jézéquel, Jean-Marc; Fleurey, Franck; Solberg, Arnor

doi:10.1109/mc.2009.327

Cited by 284 publications

(219 citation statements)

References 13 publications

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“…When the security policy is updated, the architecture is also updated. Finally, the proposed technique leverages the notion of models@runtime [21] in order to keep the architectural model (itself synchronized with the access control model) synchronized with the running system. This way, the running system can be dynamically updated in order to reflect changes in the security policy.…”

Section: Security-driven Model-based Dynamic Adaptationmentioning

confidence: 99%

Modularity and Dynamic Adaptation of Flexibly Secure Systems: Model-Driven Adaptive Delegation in Access Control Management

Nguyen

Nain

Klein

et al. 2014

Lecture Notes in Computer Science

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Abstract. Model-Driven Security (Mds) is a specialized Model-Driven Engineering (Mde) approach for supporting the development of secure systems. Model-Driven Security aims at improving the productivity of the development process and quality of the resulting secure systems, with models as the main artifact. Among the variety of models that have been studied in a Model-Driven Security perspective, one can mention access control models that specify the access rights. So far, these models mainly focus on static definitions of access control policies, without taking into account the more complex, but essential, delegation of rights mechanism. Delegation is a meta-level mechanism for administrating access rights, which allows a user without any specific administrative privileges to delegate his/her access rights to another user. This paper gives a formalization of access control and delegation mechanisms, and analyses the main hard-points for introducing various advanced delegation semantics in Model-Driven Security. Then, we propose a modular model-driven framework for 1) specifying access control, delegation and the business logic as separate concerns; 2) dynamically enforcing/weaving access control policies with various delegation features into securitycritical systems; and 3) providing a flexibly dynamic adaptation strategy. We demonstrate the feasibility and effectiveness of our proposed solution through the proof-of-concept implementations of different componentbased systems running on different adaptive execution platforms, i.e. OSGi and Kevoree.

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Section: Security-driven Model-based Dynamic Adaptationmentioning

confidence: 99%

Modularity and Dynamic Adaptation of Flexibly Secure Systems: Model-Driven Adaptive Delegation in Access Control Management

Nguyen

Nain

Klein

et al. 2014

Lecture Notes in Computer Science

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“…Transformations are usually performed at compile time as they tend to be time consuming [24]. Compile-time transformations produce source code and descriptions for all possible context states, which might not be fulfilled by the user [27]. Next, the transformation takes place at the server-side, and thus the result may contain tangled UI descriptions possibly containing repetition.…”

Section: A Ui Design Approachesmentioning

confidence: 99%

Efficient Description and Cache Performance in Aspect-Oriented User Interface Design

Černý¹,

Macík

Donahoo

et al. 2014

Annals of Computer Science and Information Systems

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Abstract-Increasing demands on web user interface (UI) usability, adaptability, and dynamic behavior drives ever growing development and maintenance complexity. Conventional design approaches scale poorly with such rising complexity, resulting in rapidly increasing costs. Much of the complexity centers around data presentation and processing. Recent work greatly reduces such data complexity through the application of AspectOriented UI (AOUI) design, which separates various UI concerns; however, rendering in conventional and even AOUI approaches fails to maintain this separation, often resulting in high repetitions of concern fragments due to tangling. Even worse, mixing of dynamic and immutable components greatly limits caching efficacy as each have differing lifetimes. We extend AOUI design to push down concern separation to rendering, which reduces description size, through repetition reduction, and enables separate caching of individual concerns. Our results show considerable size reduction of UI descriptions for data presentations, faster load times and extended caching capabilities.

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“…To address the problems of heterogeneity and dynamicity encountered in such an ubiquitous system, we proposed an Aspect-Oriented and Model-Based approach to tame the complexity of Dynamically Adaptive Systems (DAS) [8,9]. The overall approach is illustrated in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

F4Plan: An Approach to Build Efficient Adaptation Plans

André¹,

Daubert²,

Nain³

et al. 2012

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Abstract. Today's society increasingly depends on software systems subject to varying environmental conditions imposing that they continuously adapt. A dynamic adaptation reconfigures a running system from a consistent state into another consistent state. To achieve this goal, a reconfiguration consists in executing a set of actions leading from source to target configuration. The planning of actions has often been neglected in adaptation mechanisms, leading to naive sequential schedules statically predefined. EnTiMid, a ubiquitous software system for assisted living, is one of these adapting systems using basic adaptation plan. This situation may cause problems when considering adaptations involving large set of actions and/or devices, particularly for distributed service-based applications. We propose a framework to ease the integration of different planning algorithms that produce more efficient adaptation plan than an ad-hoc algorithm.

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Models@ Run.time to Support Dynamic Adaptation

Cited by 284 publications

References 13 publications

Modularity and Dynamic Adaptation of Flexibly Secure Systems: Model-Driven Adaptive Delegation in Access Control Management

Modularity and Dynamic Adaptation of Flexibly Secure Systems: Model-Driven Adaptive Delegation in Access Control Management

Efficient Description and Cache Performance in Aspect-Oriented User Interface Design

F4Plan: An Approach to Build Efficient Adaptation Plans

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