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DEFECT Definition & Usage Examples

A defect is an imperfection or insufficiency, which may be present in a product, property, process, or legal document. In product liability law, there are three general types of defects—defects of design, manufacturing, or marketing. A design defect refers to a flaw inherent in a product itself, while a manufacturing defect refers to an unintended deficiency resultant from the production process.
I very much prefer the definition provided by dukeofgaming in his answer, however, the one in this answer is the IEEE standard definition of error. We even encountered weird anomalies, which we categorized under bugs and we continously try to figure out what is the cause and how to fix it. Terming it bugs doesn’t make it trivial compared to defects. BUG should be thought of as a jargon term meaning a defect. Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. The same even though one can have endless discussion about this.

We have really other things to worry about, life is complicated enough already, etc. The term BUG has stuck as a term that means something not working as expected.
The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Outside of specific bug/task/ticket/defect/issue/whatever tracking system instance these words do not have any exact meaning and therefore discussing difference between them is pointless. When you are settling your workflow you should settle the terminology and provide descriptions. The difference is in the attitude of the programmers who use the terms.

synonyms for defect

In my current environment a « defect » is any item in Jira. « Bug » is a type of issue when something not working as expected and described in documentation. « Feature request » when something is working as expected but impvovement is desired (it can be obvious and important, but if the current behavior is described it is still a feature request).

what is defect


A marketing defect may be related to inadequate warnings or instructions regarding a product’s proper use. In real estate, a latent defect refers to a deficiency, which is present at the time a property is accepted but does not manifest itself upon a reasonable inspection. A defective legal document is one that fails to comply with relevant procedural or jurisdictional requirements, and therefore may be rendered legally invalid as a result. This website is using a security service to protect itself from online attacks.
As such, bugs often represent the
hour-to-hour and day-to-day workflow for engineering teams. In the category of developer we
include software engineers,
programmers, analysts, and testers. For example, a developer may
misunderstand a design notation, or
a programmer might type a variable
name incorrectly.

Related word

Open an article of « IEEE Software » and it’s used the same way. Indeed, one rarely encounters the word « defect » in real life. I’m not to keen on the formal definition of error, though.

  • Back in the old days – defective operation of a computer was caused by all sorts of things – including rats chewing the wiring and real bugs (critters) getting into the works.
  • Indeed, one rarely encounters the word « defect » in real life.
  • A fault (defect) is introduced into
    the software as the result of an
    error.
  • There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.
  • However, a programmer who uses the term « defect » may become uncomfortable with releasing a program with a defect because the term implies a greater severity.

And,
sometimes, software programs create bugs via an API. Bugs and bug reports are the one artifact every tester understands. Finding bugs, triaging bugs, fixing bugs, and regressing bugs are the
heartbeat and workflow for software quality. This is https://www.globalcloudteam.com/ the part of
testing that is the most conventional at Google, but there are still a
few interesting deviations from the norm. For this section, we ignore
the bugs that are filed to track work items and use the term to
identify actual broken code.
During execution of a software
component or system, a tester,
developer, or user observes that it
does not produce the expected results. In some cases a particular type of
misbehavior indicates a certain type
of fault is present. We can say that
the type of misbehavior is a symptom
of the fault. An experienced
developer/tester will have a knowledge

base of fault/symptoms/failure cases
(fault models as described in Chapter
3) stored in memory.
However, some people argue that bug is an error that is found before releasing the software, whereas defect is one found by the customer. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. A defect means an error where the program doesn’t conform to the specifications. This is more severe and basically says, any error is a huge problem with the program and this means that the program is not fit to be released. An example of how the term is used in the wild, from « How Google Tests Software » p. 113.
However, a programmer who uses the term « defect » may become uncomfortable with releasing a program with a defect because the term implies a greater severity. As if a program can randomly have bugs in it after you’re done programming. If it has random bugs then it means you didn’t conform to the specifications and your program is in error.
There are more types but those 2 are used by people outside of development team to ask something from it. I think the definition of failure is the most relevant. Everything begins with a mistake, whether it’s in the requirements, the design, the implementation, or the test case/procedure. If this mistake is manifested in software, it becomes a fault.

Incorrect
behavior can include producing
what is defect
incorrect values for output variables,
an incorrect response on the part of a
device, or an incorrect image on a
screen. During development failures
are usually observed by testers, and
faults are located and repaired by
developers. Product
what is defect
Managers file bugs when they catch issues in the early builds that
differ form their specifications/thoughts. Developers file bugs when
they realize they accidentally checked in an issue, or find an issue
somewhere else in the codebase, or while dogfooding Google products. Bugs also come in from the field, from crowd-sourced testers, external
what is defect
vendor testing, and are filed by Community Managers monitoring the
product-specific Google Groups. Many internal versions of apps also
have quick one-click ways to file bugs, like Google maps.
If you are picking names for issue types, « bug » and « defect » sound similar to me. As English is not my native language I cannot really see much of it and not sure if what I see is correct. Back in the old days – defective operation of a computer was caused by all sorts of things – including rats chewing the wiring and real bugs (critters) getting into the works. According to this, there is no difference between a defect and a bug.

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