These tags refer to the same thing: HP Quality Center. They should be merged into one / have the others be synonyms for aka HPQC, which is the least ambiguous, though not historically accurate (see item #4 below).

  • has 109 questions, created 2 years ago
  • has 60 question, created 2 months ago
  • has 85 questions, created 2 years ago
  • also exists with just 5 questions - Mercury's Test Director was bought by HP and re-branded to Quality Center. (And to-date, we still see 'TDD' in the APIs.)

HP Application Lifecycle Management (ALM; terrible name) v11, which just happens to be the one to come after Quality Center 10, includes Quality Center as well some other enterprise tools. If [hp-alm] or [hpqc] tags get created in the future, those should also point to - in the context of StackOverflow questions, those would be the same as HPQC.

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    [qc] should be burninated, not merged into these. It's a common abbreviation for "quality control" and is used that way on a non-trivial number of questions.
    – Charles
    Dec 17, 2013 at 17:16
  • quick browse of all the questions on SO tagged [qc] currently - all refer to quality center, so someone using that tag should see it. anyway, there's already a [qa] tag pointing to [quality-assurance]. can't really prevent people from using the wrong tag but hey, that's what edits are for :-)
    – aneroid
    Dec 18, 2013 at 17:51
  • All? No. qc+testing, qc+qa, qc+defects, qc+automated-tests. Some in there have no relation to HP Quality Center, but most do. It's still ambiguous and should not be included as a synonym here. It should be burninated.
    – Charles
    Dec 18, 2013 at 18:19
  • All minus 2. And those two have the [qa] tag as well. Like I said, can't stop people from using the wrong tags. Everything else mentions terms like 'test plan', 'test lab' which are HPQC related. Along with QTP, ALM, etc. So those should be synonym-ed to [hp-quality-center] before deleting or blacklisting [qc].
    – aneroid
    Dec 19, 2013 at 10:14
  • I've copied this question over to meta.SO. Should have been migrated, instead of closing, like this newer identical question was.
    – aneroid
    Sep 28, 2014 at 2:59