Automated mass maintenance of a software portfolio

Veerman, Niels

doi:10.1016/j.scico.2006.04.006

Cited by 7 publications

(4 citation statements)

References 55 publications

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“…Gestionar la arquitectura de software después de la fase de implementación es una tarea muy compleja debido a los frecuentes cambios en los requisitos y el entorno del software [20]. Existe el marco de trabajo SHEPhERd (Software arcHitecture Evolution) cuyo objetivo es minimizar los costos mientras se mantiene la confiabilidad y el rendimiento de la arquitectura de software [21].…”

Section: Desafíos De La Etapa De Mantenibilidadunclassified

Mantenibilidad del Software. Consideraciones para su especificación y validación

Farfán

Zepeda

2020

Ingeniare. Rev. chil. ing.

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En la actualidad todas las organizaciones dan soporte a sus procesos de negocio incorporando productos de software. Dichos productos, a lo largo de su vida útil, deben ser modificados por diferentes motivos. Mientras el producto esté en operación, requerirá que se realice mantenimiento. Dada la criticidad de la característica de mantenibilidad de los productos, es relevante que cada vez que se especifican los requisitos de un nuevo software, quede claramente establecido qué hacer para asegurar que el mismo pueda ser mantenido en el transcurso de su vida útil. Este artículo presenta una revisión bibliográfica, cuyo objetivo es presentar algunas consideraciones importantes sobre el proceso de mantenimiento, que se deben tener en cuenta a la hora de especificar el atributo de mantenibilidad, de tal forma que, posteriormente se pueda validar que efectivamente el producto es mantenible. Para esto se presentan algunos desafíos del proceso de mantenimiento, métricas asociadas a la mantenibilidad de los productos y algunas recomendaciones para conseguir su correcta especificación. La principal conclusión obtenida, es que las organizaciones debieran recolectar a través del tiempo, datos históricos relacionados con los ajustes y cambios realizados en el producto, que permitan a futuro evaluar la conveniencia de continuar dando mantenimiento al producto, o simplemente reemplazarlo por uno nuevo. Además, dada la relevancia del atributo de mantenibilidad, en la especificación de requisitos, se deben incluir aspectos funcionales y de proceso que permitan de manera objetiva validar posteriormente si un producto es mantenible o no. Palabras clave: Mantenibilidad del Software, requisitos no funcionales, especificación de requisitos, validación de requisitos no funcionales.

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Section: Desafíos De La Etapa De Mantenibilidadunclassified

Mantenibilidad del Software. Consideraciones para su especificación y validación

Farfán

Zepeda

2020

Ingeniare. Rev. chil. ing.

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“…We, on the other hand, address the omnipresent IT management issue of controlling MIPS attributed costs and strive to provide executives with management tools to manage those costs. Similarly as in [57] we also investigate an industrial portfolio. Our approach is, in fact, fitted into the realities of large organizations.…”

Section: Related Workmentioning

confidence: 99%

Reducing operational costs through MIPS management

Kwiatkowski

Verhoef

2015

Science of Computer Programming

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h i g h l i g h t s• We present an approach to reducing CPU usage costs in large organizations.• Source code scans are used to identify low-risk high-yield SQL-tuning opportunities.• Our approach is suitable for deployment in large business-critical IT-portfolios.• Case study: a mainframe production environment of 246 applications (19.7M+ LOC). a r t i c l e i n f o a b s t r a c t We focus on an approach to reducing the costs of running applications. MIPS, which is a traditional acronym for millions of instructions per second, have evolved to become a measurement of processing power and CPU resource consumption. The need for controlling MIPS attributed costs is indispensable given their significant contribution to operational costs. In this paper we investigate a large mainframe production environment running 246 Cobol applications of an organization operating in the financial sector. We found that the vast majority of the top CPU intensive operations in the production environment involve the use of DB2. We propose approaching portfolio-wide efforts to reduce CPU resource consumption from the source code perspective. Our technique is low-risk, lowcost and involves SQL code improvements of small scale. We show how to analyze a mainframe environment in an industrial setting, and to locate the most promising source code segments for optimizing runtime usage. Our approach relies on the mainframe usage data, facts extracted from source code, and is supported by a real-world SQL tuning project. After applying our technique to a portfolio of Cobol applications running on the mainframe our estimates suggested a possible drop in the attributed monthly CPU usage by as much as 16.8%. The approach we present is suited for facilitation within a mainframe environment of a large organization.

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“…While analysis of real-life code samples gives valuable insights and commonly provides answers to the stated problems when trying to address problems encountered by the executives at the board level it is important to reach for the portfolio of systems as a whole to obtain an organization-wide view. Similarly as in [66,95,112] we also analyze a large IT-portfolio. One of the potential reasons that related work deals with smaller portfolios is the reluctance of companies to disclose all the sources of their core assets, that are considered their trade secrets.…”

Section: Case Studymentioning

confidence: 99%

Recovering management information from source code

Kwiatkowski¹,

Verhoef²

2013

Science of Computer Programming

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a b s t r a c t IT has become a production means for many organizations and an important element of business strategy. Even though its effective management is a must, reality shows that this area still remains in its infancy. IT management relies profoundly on relevant information which enables risk mitigation or cost control. However, the needed information is either missing or its gathering boils down to daunting tasks. We propose an approach to recovery of management information from the essence of IT; the software's source code. In this paper we show how to employ source code analysis techniques and recover management information. In our approach we exploit the potential of the concealed data which resides in the source code statements, source comments, and also compiler listings. We show how to depart from the raw sources, extract data, organize it, and eventually utilize so that the bit level data provides IT executives with support at the portfolio level. Our approach is pragmatic as we rely on real management questions, best practices in software engineering, and also IT market specifics. We enable, for instance, an assessment of the IT-portfolio market value, support for carrying out what-if scenarios, or identification and evaluation of the hidden risks for IT-portfolio maintainability. The study is based on a real-life ITportfolio which supports business functions of an organization operating in the financial sector. The IT-portfolio comprises Cobol applications run on a mainframe with the total number of lines of code amounting to over 18 million. The approach we propose is suited for facilitation within a large organization. It provides for a fact-based support for strategic decision making at the portfolio level.

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Automated mass maintenance of a software portfolio

Cited by 7 publications

References 55 publications

Mantenibilidad del Software. Consideraciones para su especificación y validación

Mantenibilidad del Software. Consideraciones para su especificación y validación

Reducing operational costs through MIPS management

Recovering management information from source code

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