A Reference Architecture Based on Reflection for Self-Adaptive Software

Affonso, Frank José; Nakagawa, Elisa Yumi

doi:10.1109/sbcars.2013.24

Cited by 16 publications

(41 citation statements)

References 28 publications

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“…For instance, service-oriented architectures such as IBM's foundation architecture [13] and architectures for software engineering environments [6] are some of RAs found in the literature. Other areas/domains have also proposed RAs, including the self-software (e.g., RA4SaS [8]). …”

Section: Background and Related Workmentioning

confidence: 99%

“…According to Affonso and Nakagawa [8], the RA4SaS ( Figure 1) is composed of four external modules and a core of adaptation. This RA works with a controlled adaptation approach, i.e., the software engineer must insert annotations in each software entity so that the automatic mechanisms in the environment execution can identify the adaptation level of each entity.…”

Section: Reference Architecture For Sasmentioning

confidence: 99%

“…The Infrastructure Module provides support for the adaptation of software entities at runtime, i.e., a set of mechanisms for the dynamic compiling and dynamic loading of such entities. Finally, the Core of Adaptation represents an automated process composed of a logic sequence of nine well-defined steps so that the adaptation of the software entities is conducted with no human intervention [8].…”

Section: Reference Architecture For Sasmentioning

confidence: 99%

“…DmS-Modeler TOOL As presented in Section III, the RA4SaS has an automated process to accommodate the structural or behavioral changes in a software entity. According to authors of this RA [8], the modification of a software entity is a complex activity, since an action plan must established so that the software entities are adapted. In short, this plan must be elaborated based on new requirements (e.g., structural and/or behavioral) and adaptation level of each software entity.…”

Section: Reference Architecture For Sasmentioning

confidence: 99%

“…Thus, in previous work [3], [8] we have proposed a Reference Architecture for SaS (RA4SaS) [8] -an architecture that provides a set of guidelines for the SaS development and an automated process for self-adaptation of the software entities at runtime without human intervention. From this point onwards, SaS may be also referred to as software entities or simply entities.…”

Section: Introductionmentioning

confidence: 99%

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DmS-Modeler: A Tool for Modeling Decision-making Systems for Self-adaptive Software Domain

Affonso

Leite²,

Nakagawa

2016

International Conferences on Software Engineering and Knowledge Engineering

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Abstract-The ability to modify its own structure and/or behavior at runtime is a native feature in the development of Self-adaptive Software (SaS). In previous work, a Reference Architecture for SaS (RA4SaS), an automated process for adaptation, and a framework for decision-making were developed to assist the development of SaS. Although such initiatives have collaborated with evolution of SaS, the design of the Decisionmaking Systems (DmS), element of first class for SaS, is manually conducted. Therefore, this paper presents a tool called DmSModeler, which aims to assist the development of DmS for SaS, providing facilities for modeling, calibration of such system, and automatic generation of infrastructure (i.e., source code and databases). Aiming to present the applicability of our tool, a case study was conducted and the results enable us to have good perspectives of contribution to the SaS area and other domains of software systems.

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Section: Background and Related Workmentioning

confidence: 99%

Section: Reference Architecture For Sasmentioning

confidence: 99%

Section: Reference Architecture For Sasmentioning

confidence: 99%

Section: Reference Architecture For Sasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

DmS-Modeler: A Tool for Modeling Decision-making Systems for Self-adaptive Software Domain

Affonso

Leite²,

Nakagawa

2016

International Conferences on Software Engineering and Knowledge Engineering

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Attack Tolerance for Services-Based Applications in the Cloud

Ouffoué

Zaïdi

Cavalli

2019

Testing Software and Systems

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Web services allow the communication of heterogeneous systems on the Web. These facilities make them particularly suitable for deploying in the cloud. Although research on formalization and verification has improved trust in Web services, issues such as high availability and security are not fully addressed since the solutions proposed are sometimes attack-specific. In addition, Web services deployed in cloud infrastructures inherit their vulnerabilities. For example when different tenants in a cloud platform consume the same instance of the service, attacks such as side-channel can be performed by malicious tenants. Because of this limitation, they may be unable to perform their tasks perfectly. In this thesis, we claim that a good tolerance requires attack detection and continuous monitoring on the one hand; and reliable reaction mechanisms on the other hand. We therefore proposed a new formal monitoring methodology that takes into account the risks that our services may face. To implement this methodology, we first developed an approach of attack tolerance that leverages model-level diversity. We define a model of the system and derive more robust functionally equivalent variants that can replace the first one in case of attack. To avoid manually deriving the variants and to increase the level of diversity, we proposed a second complementary approach. The latter still consists in having different variants of our services; but unlike the first, we have a single model and the implementations differ at the language, source code and binaries levels. Moreover, to ensure detection of insider attacks, we investigated a new detection and reaction mechanism based on software reflection. While the program is running, we analyze the methods to detect malicious executions. When these malicious activities are detected, using reflection again, new efficient implementations are generated as a countermeasure. Finally, we leveraged a formal Web service testing framework by incorporating these complementary mechanisms in order to take advantage of the benefits of each of them. iii Résumé Les services Web permettent la communication de systèmes hétérogènes sur le Web. Ces facilités font que ces services sont particulièrement adaptés au déploiement dans le cloud. Les efforts de formalisation et de vérification permettent d'améliorer la confiance dans les services Web, néanmoins des problèmes tels que la haute disponibilité et la sécurité ne sont pas entièrement pris en compte. Par ailleurs, les services Web déployés dans une infrastructure cloud héritent des vulnérabilités de cette dernière. En raison de cette limitation, ils peuvent être incapables d'exécuter parfaitement leurs tâches. Dans cette thèse, nous pensons qu'une bonne tolérance nécessite un monitoring constant et des mécanismes de réaction fiables. Nous avons donc proposé une nouvelle méthodologie de monitoring tenant compte des risques auxquels peuvent être confrontés nos services. Pour mettre en oeuvre cette méthodologie, nous avons d'abord développé une méthode de ...

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