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Previous issue date: 2014-04-25 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Mainstream programming languages provide built-in exception handling mechanisms to support robust and maintainable implementation of exception handling in software systems. Most of these modern languages, such as C#, Ruby, Python and many others, are often claimed to have more appropriated exception handling mechanisms. They reduce programming constraints on exception handling to favor agile changes in the source code. These languages provide what we call maintenance-driven exception handling mechanisms. It is expected that the adoption of these mechanisms improve software maintainability without hindering software robustness. However, there is still little empirical knowledge about the impact that adopting these mechanisms have on software robustness. This work addresses this gap by conducting an empirical study aimed at understanding the relationship between changes in C# programs and their robustness. In particular, we evaluated how changes in the normal and exceptional code were related to exception handling faults. We applied a change impact analysis and a control flow analysis in 100 versions of 16 C# programs. The results showed that: (i) most of the problems hindering software robustness in those programs are caused by changes in the normal code, (ii) many potential faults were introduced even when improving exception handling in C# code, and (iii) faults are often facilitated by the maintenance-driven flexibility of the exception handling mechanism. Moreover, we present a series of change scenarios that decrease the program robustness / As linguagens de programa??o convencionais fornecem mecanismos de tratamento de exce??es internos a fim de prover implementa??o de tratamento de exce??es em sistemas de software robusto e manuten?vel. A maioria dessas linguagens modernas, tais como C#, Ruby, Python e muitas outras, frequentemente afirmaram ter mecanismos de tratamento de exce??o mais apropriados. Elas reduzem as restri??es de programa??o no tratamento de exce??o buscando agilizar mudan?as no c?digo fonte. Essas linguagens suportam o que chamamos de mecanismos de tratamento de exce??es dirigidos a manuten??o. Espera-se que a ado??o desses mecanismos aumentem a manutenibilidade dos softwares sem impactar na robustez. Entretanto ainda existe pouco conhecimento emp?rico acerca do impacto que a ado??o desses mecanismos tem na robustez de softwares. Este trabalho busca preencher essa lacuna conduzindo um estudo emp?rico direcionado ao entendimento da rela??o entre mudan?as em programas C# e sua robustez. Em particular, n?s avaliamos como mudan?as nos c?digos normal e excepcional se relacionam com faltas no tratamento de exce??o. N?s aplicamos uma an?lise de impacto de mudan?a e uma an?lise de fluxo de controle em 100 vers?es de 16 programas escritos em C#. A partir dos dados coletados, este trabalho identificou os elementos do trade-off entre manutenibilidade e robustez
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/18103 |
| Date | 25 April 2014 |
| Creators | Sousa Neto, Eliezio Soares de |
| Contributors | CPF:03038841420, http://lattes.cnpq.br/4635320220484649, Lima Filho, Fernando Jos? Castor de, CPF:02607070406, http://lattes.cnpq.br/7310046838140771, Costa, Umberto Souza da, CPF:72031220500, http://lattes.cnpq.br/9526809466920084, Cacho, Nelio Alessandro Azevedo |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Sistemas e Computa??o, UFRN, BR, Ci?ncia da Computa??o |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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