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Software rot (bit rot, code rot, software erosion, software decay, or software entropy) is the degradation, deterioration, or loss of the use or performance of software over time. From a software user experience perspective, it is operating environmental evolution inclusive of hardware.
The term originated in the field of software development, and has since spread to other fields. Death marches are usually a result of unrealistic or overly optimistic expectations in scheduling or feature scope , and often result from a lack of appropriate documentation , relevant training, or outside expertise needed to complete the project.
Because software, unlike a major civil engineering construction project, is often easy and cheap to change after it has been constructed, a piece of custom software that fails to deliver on its objectives may sometimes be modified over time in such a way that it later succeeds—and/or business processes or end-user mindsets may change to accommodate the software.
As the software gets older it becomes less well-suited to its purpose and will eventually stop functioning as it should. Rebooting or reinstalling the software can act as a short-term fix. [1] A proactive fault management method to deal with the software aging incident is software rejuvenation. This method can be classified as an environment ...
After developing structured analysis techniques of the 1970s, and object-oriented analysis/design in the late 1980s and 1990s, in the new millennium Yourdon specialized in project management, software engineering methodologies, and Web 2.0 development. [7]
However, development teams may fail to meet this requirement due to factors such as short deadlines or lack of domain knowledge. Chaos engineering encompasses techniques aimed at meeting resilience requirements. Chaos engineering can be used to achieve resilience against infrastructure failures, network failures, and application failures.
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Usually, forensic software engineering is performed with an interest in understanding the functionality - and sometimes intent - of software that has been abandoned by its creators, with an eye to correcting unexpected outcomes or determining whether to port, rebuild, replace, or retire a functional software instance. [1]