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This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.
If the user does not provide valid credentials or if the authentication fails, a 403 status code is returned. IP restrictions: The server may also restrict access to specific IP addresses or IP ranges. If the user's IP address is not included in the list of permitted addresses, a 403 status code is returned.
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In the early 1970s, companies began to separate out software maintenance with its own team of engineers to free up software development teams from support tasks. [1] In 1972, R. G. Canning published "The Maintenance 'Iceberg '", in which he contended that software maintenance was an extension of software development with an additional input: the existing system. [1]
Software testing typically includes handling software bugs – a defect in the code that causes an undesirable result. [11]: 31 Bugs generally slow testing progress and involve programmer assistance to debug and fix. Not all defects cause a failure. For example, a defect in dead code will not be considered a failure.
A software performance regression is a situation where the software still functions correctly, but performs more slowly or uses more memory or resources than before. [3] Various types of software regressions have been identified in practice, including the following: [4] Local – a change introduces a new bug in the changed module or component.
A patch release (often colloquially also known as a point release, dot release, or bugfix release) is a software release of a product or other project, especially one intended to fix bugs or do small cleanups rather than add significant features. Often, there are too many bugs to be fixed in a single major or minor release, creating a need for ...
An advantage of break/fix IT management is the initial lower cost of maintenance. [2] However, since problems are only addressed when they arise, maintenance is reactive rather than proactive . Small problems left unaddressed can balloon into major failures due to focus on cost.