A study on the uncertainty inherent in class cohesion measurements

Ahmed, Moataz; Abubakar, Adam; AlGhamdi, Jarallah

doi:10.1016/j.sysarc.2010.06.004

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…A metric would not be considered reliable if it gives the same value for packages that are, intuitively, of different cohesion/coupling qualities; or viceversa. [28]. Likewise, a metric would not be considered reliable if it ranks a class as better than another where intuitions suggest the other way around.…”

Section: Discussionmentioning

confidence: 99%

Review and Evaluation of Cohesion and Coupling Metrics at Package and Subsystem Level

Ebad¹,

Ahmed²

2016

JSW

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Cohesion and coupling metrics at package and subsystem level play a crucial role in guiding software packaging (partitioning) and analyzing the maintainability and reusability of software. There has been a number of attempts to propose frameworks to assess the cohesion and coupling metrics at class level. A little work has been done at a higher level. In this paper, we survey the existing cohesion and coupling metrics at package and subsystem level and present an attribute-based framework to assess these metrics. The framework is meant to guide researchers interested in proposing new metrics at package level. The paper discusses a number of metrics against the framework.

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Section: Discussionmentioning

confidence: 99%

Review and Evaluation of Cohesion and Coupling Metrics at Package and Subsystem Level

Ebad¹,

Ahmed²

2016

JSW

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“…In general, higher connectivity of the residual graph indicates enhanced robustness. The conventional indices for quantification of graph connectivity include Largest Connected Component (LCC) and the Number of Connected Components (NCC) [48]. Here, a component denotes a subgraph, in which any two vertices are connected to each other by paths and is connected to no additional vertices in the graph.…”

Section: Metrics For Robustness Evaluationmentioning

confidence: 99%

Robustness Assessment of Hetero-Functional Graph Theory Based Model of Interdependent Urban Utility Networks

Munikoti,

Lai,

Natarajan

2020

Preprint

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The increasing urban population imposes a substantial and growing burden on the supporting infrastructure, such as electricity, water, heating, natural gas, road transportation, etc. This paper presents a Hetero-functional graph theory (HFGT) based modeling framework for these integrated infrastructures followed by an analysis of network robustness. The supporting infrastructures along with the infrastructure repair facilities are considered. In contrast to conventional graph representations, a weighted HFGT model is used to capture the system processes and mutual dependencies among resources. To assess robustness of the inter-dependent networks, impacts of complete/partial and random/targeted attacks are quantified. Specifically, various contingency scenarios are simulated and the vulnerability of the network is evaluated. Additionally, several robustness metrics are proposed to provide a comprehensive evaluation of system robustness. The proposed weighted HFGT modeling and robustness assessment approach is tested using a synthetic interdependent network, comprising of an electrical power system, a water network, a district heating network, a natural gas system and a road transportation network. Results demonstrate that system robustness can be enhanced via securing system information and mitigating attack strength.

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“…Assim, a atividade de manutenção em pacotes altamente coesos e baixamente acoplados é menos árdua do que em pacotes com baixa coesão e alto acoplamento. Dessa forma, um sistema de software deve possuir baixo acoplamento e alta coesão em seus componentes (por exemplo, pacotes) [Ragab;Ammar, 2010;Ahmed et al, 2011;Shah et al, 2012].…”

Section: Introductionunclassified

Melhoria da Qualidade da Estrutura Interna de Sistemas de Software por Redução do Nível de Acoplamento entre Pacotes

Pinto¹,

Costa²

2014

Anais Do XIII Simpósio Brasileiro De Qualidade De Software (SBQS 2014)

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Sistemas de software devem possuir alto grau de manutenibilidade para que eles sejam facilmente evoluídos de modo a atender novas necessidades do usuário, corrigir erros ou adaptá-los a novas tecnologias. Uma das características intrínsecas a ser melhorada é a independência modular, em que o software deve apresentar baixo acoplamento e alta coesão. Com as constantes alterações no software, essa característica tende a não ser mais adequada e a estrutura interna do software deteriora-se. O que se pode fazer é realizar refatorações no código para que a estrutura interna readquira essa independência modular. Neste artigo, o objetivo é apresentar uma abordagem para reestruturar os pacotes de sistemas de software, por meio da movimentação de classes entre pacotes, de forma a melhorar a qualidade da sua estrutura interna. A abordagem foi utilizada (i) considerando e (ii) não considerando uma ordem de análise das classes. Cinco sistemas de software foram utilizados para avaliar a abordagem proposta, cujas classes com alto acoplamento e baixa coesão nos pacotes tiveram suas medidas melhoradas e, consequentemente, tiveram melhora na qualidade dos sistemas.

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A study on the uncertainty inherent in class cohesion measurements

Cited by 5 publications

References 7 publications

Review and Evaluation of Cohesion and Coupling Metrics at Package and Subsystem Level

Review and Evaluation of Cohesion and Coupling Metrics at Package and Subsystem Level

Robustness Assessment of Hetero-Functional Graph Theory Based Model of Interdependent Urban Utility Networks

Melhoria da Qualidade da Estrutura Interna de Sistemas de Software por Redução do Nível de Acoplamento entre Pacotes

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