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- Software_maintenance abstract "Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes.A common perception of maintenance is that it merely involves fixing defects. However, one study indicated that the majority, over 80%, of the maintenance effort is used for non-corrective actions. This perception is perpetuated by users submitting problem reports that in reality are functionality enhancements to the system. More recent studies put the bug-fixing proportion closer to 21%.Software maintenance and evolution of systems was first addressed by Meir M. Lehman in 1969. Over a period of twenty years, his research led to the formulation of Lehman's Laws (Lehman 1997). Key findings of his research include that maintenance is really evolutionary development and that maintenance decisions are aided by understanding what happens to systems (and software) over time. Lehman demonstrated that systems continue to evolve over time. As they evolve, they grow more complex unless some action such as code refactoring is taken to reduce the complexity.The key software maintenance issues are both managerial and technical. Key management issues are: alignment with customer priorities, staffing, which organization does maintenance, estimating costs. Key technical issues are: limited understanding, impact analysis, testing, maintainability measurement.Software maintenance is a very broad activity that includes error correction, enhancements of capabilities, deletion of obsolete capabilities, and optimization. Because change is inevitable, mechanisms must be developed for evaluation, controlling and making modifications.So any work done to change the software after it is in operation is considered to be maintenance work.The purpose is to preserve the value of software over the time. The value can be enhanced by expanding the customer base, meeting additional requirements, becoming easier to use, more efficient and employing newer technology. Maintenance may span for 20 years, whereas development may be 1-2 years.".
- Software_maintenance wikiPageExternalLink www.s3m.ca.
- Software_maintenance wikiPageExternalLink 5391.
- Software_maintenance wikiPageID "780960".
- Software_maintenance wikiPageRevisionID "584216979".
- Software_maintenance hasPhotoCollection Software_maintenance.
- Software_maintenance subject Category:Software_maintenance.
- Software_maintenance comment "Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes.A common perception of maintenance is that it merely involves fixing defects. However, one study indicated that the majority, over 80%, of the maintenance effort is used for non-corrective actions. This perception is perpetuated by users submitting problem reports that in reality are functionality enhancements to the system.".
- Software_maintenance label "Konserwacja oprogramowania".
- Software_maintenance label "Maintenance du logiciel".
- Software_maintenance label "Mantenimiento de software".
- Software_maintenance label "Manutenzione (software)".
- Software_maintenance label "Manutenção de software".
- Software_maintenance label "Software maintenance".
- Software_maintenance label "Softwarewartung".
- Software_maintenance label "Сопровождение программного обеспечения".
- Software_maintenance label "صيانة البرمجيات".
- Software_maintenance label "ソフトウェア保守".
- Software_maintenance label "軟體維護".
- Software_maintenance sameAs Softwarewartung.
- Software_maintenance sameAs Mantenimiento_de_software.
- Software_maintenance sameAs Maintenance_du_logiciel.
- Software_maintenance sameAs Manutenzione_(software).
- Software_maintenance sameAs ソフトウェア保守.
- Software_maintenance sameAs Konserwacja_oprogramowania.
- Software_maintenance sameAs Manutenção_de_software.
- Software_maintenance sameAs m.03bwyk.
- Software_maintenance sameAs Q940053.
- Software_maintenance sameAs Q940053.
- Software_maintenance wasDerivedFrom Software_maintenance?oldid=584216979.
- Software_maintenance isPrimaryTopicOf Software_maintenance.