Separation of Concerns in Multi-agent Systems: An Empirical Study

Garcia, Alessandro; Sant’Anna, Cláudio; Chávez, Christina; Silva, Viviane Torres da; Lucena, Carlos José Pereira de; Staa, Arndt von

doi:10.1007/978-3-540-24625-1_4

Cited by 43 publications

(69 citation statements)

References 27 publications

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“…While many studies have explored the capabilities of aspect-oriented programming (AOP) [1] to improve the modularity, customization, and evolution of software [2,3,4,5,6,7,8], little is known on how AOP has been used. As AspectJ 1 is the most widely used AOP language, we want to know which AspectJ mechanisms are used, to what extent, and for what kinds of crosscutting concerns.…”

Section: Introductionmentioning

confidence: 99%

How AspectJ is Used: An Analysis of Eleven AspectJ Programs.

Apel¹

2010

JOT

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Abstract. While it is well-known that crosscutting concerns occur in many software projects, little is known on how aspect-oriented programming and in particular AspectJ have been used. In this paper, we analyze eleven AspectJ programs by different authors to answer the questions: which mechanisms are used, to what extent, and for what purpose. We found the code of these programs to be on average 86 % objectoriented, 12 % basic AspectJ mechanisms (introductions and method extensions), and 2 % advanced AspectJ mechanisms (homogeneous advice or advanced dynamic advice). There is one class of crosscutting concerns -which is mostly concerned with introductions and method extensions -that matches this result well: collaborations. These results and our discussions with program authors indicate the bulk of coding activities was implementing collaborations. Several studies and researchers suggest that languages explicitly supporting collaborations are better suited than aspectsà la AspectJ for this task.

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Section: Introductionmentioning

confidence: 99%

How AspectJ is Used: An Analysis of Eleven AspectJ Programs.

Apel¹

2010

JOT

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“…AO applications include a reflective middleware system [5], multi-agent systems [16], a CVS system [13], product lines for quality control measurements [24] and J2ME games [24].…”

Section: Discussionmentioning

confidence: 99%

Composing architectural aspects based on style semantics

Chávez

Garcia

Batista

et al. 2009

Proceedings of the 8th ACM International Conference on Aspect-Oriented Software Development

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The lack of architecturally-significant mechanisms for aspectual composition might artificially hinder the specification of stable and reusable design aspects. Current aspect-oriented approaches at the architecture-level tend to mimic programming language join point models while overlooking mainstream architectural concepts such as styles and their semantics. Syntax-based pointcuts are typically used to select join points based on the names of architectural elements, exposing architecture descriptions to pointcut fragility and reusability problems. This paper presents style-based composition, a new flavor of aspect composition at the architectural level based on architectural styles. We propose stylebased join point models and provide a pointcut language that supports the selection of join points based on styleconstrained architectural models. Stability and reusability assessments of the proposed style-based composition model were carried out through three case studies involving different styles. The interplay of style-based pointcuts and some style composition techniques is also discussed.

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“…These metrics have already been used in a significant number of other studies [7,8]. Some of them have been automated in the context of a query-based tool for aspect understanding measurement and analysis [1].…”

Section: The Metricsmentioning

confidence: 99%

“…Garcia et al [8] have presented a quantitative study designed to compare the maintenance and reuse support of a pattern-oriented approach and an aspect-oriented approach for a multi-agent system development. They used an assessment framework that includes the same metrics suite used in our study.…”

Section: Related Workmentioning

confidence: 99%

“…The pattern roles often crosscut several classes in a software system. Moreover, recent studies [8,9,10] have shown that object-oriented abstractions are not able to modularize these pattern-specific concerns and tend to lead to programs with poor modularity. In this context, it is important to systematically verify whether emerging development paradigms support improved modularization of the crosscutting concerns relative to the patterns.…”

Section: Introductionmentioning

confidence: 99%

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