Software changeSoftware change is inevitableNew requirements emerge when the software is used The business environment changes Errors must be repaired New computers and equipment is added to the system The performance or reliability of the system may have to be improved.A key problem for all organizations is implementing and managing change to their existing software systems.3Chapter 9 Software evolution Topics coveredEvolution processesChange processes for software systems Program evolution dynamicsUnderstanding software evolutionSoftware maintenanceMaking changes to operational software systemsLegacy system managementMaking decisions about software change2Chapter 9 Software evolution Chapter 9 – Software EvolutionLecture 11Chapter 9 Software evolution
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