Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Question and answer system
open-in-new
<p>A question and answer system (or Q&A system) is an online software system that attempts to answer questions asked by users. Q&A software is frequently integrated by large and specialist <a href="/facts/Corporation/hykSVoWJ">corporations</a> and tends to be implemented as a <a href="/facts/Online_community/ssx0TapC">community</a> that allows users in similar fields to discuss questions and provide answers to common and specialist questions. </p><p>There are numerous examples of Q&A software in both <a href="/facts/Open-source_model/uDWVYJ4V">open source</a> and <a href="/facts/SaaS/LPyPQ5b7">SaaS</a> formats, including <a href="/facts/Qhub/AtVVV8pR">Qhub</a>, OSQA, Question2Answer, and <a href="/facts/Stack_Exchange/VQvJKJMh">Stack Exchange</a>. Communities such as <a href="/facts/Quora/sdrkWzr6">Quora</a> or <a href="/facts/Stack_Exchange/VQvJKJMh">Stack Exchange</a> are <a href="/facts/Closed_source/9zcskxYL">closed source</a> Q&A sites. </p>