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Tools are often used to track bugs and other issues with software. Typically, different tools are used by the software development team to track their workload than by customer service to track user feedback. [17] A tracked item is often called bug, defect, ticket, issue, feature, or for agile software development, story or epic.
The term bug applies exclusively to a system that is (human) designed; not to a natural system; and that the issue is within the influence of human control. For example, humans have faults but not bugs, and a server crash due to natural disaster is not a bug. In addition to or instead of defect, some use: error, flaw or fault.
A hardware bug is a bug in computer hardware.It is the hardware counterpart of software bug, a defect in software.A bug is different from a glitch which describes an undesirable behavior as more quick, transient and repeated than constant, and different from a quirk which is a behavior that may be considered useful even though not intentionally designed.
The DAO bug. On June 17, 2016, the DAO was subjected to an attack exploiting a combination of vulnerabilities, including the one concerning recursive calls, that resulted in the transfer of 3.6 million Ether – around a third of the 11.5 million Ether that had been committed to The DAO – valued at the time at around $50M.
If insufficient bug fixes are performed, numerous glitches and bugs can make their way to the final product. Bethesda Softworks, for example, is notorious for the amount of glitches in their games, though some players even prefer them to a glitch-free experience. [12]
After the bug is reproduced, the input of the program may need to be simplified to make it easier to debug. For example, a bug in a compiler can make it crash when parsing a large source file. However, after simplification of the test case, only few lines from the original source file can be sufficient to reproduce the same crash.
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A major component of a bug tracking system is a database that records facts about known bugs. Facts may include the time a bug was reported, its severity, the erroneous program behavior, and details on how to reproduce the bug; as well as the identity of the person who reported it and any programmers who may be working on fixing it.