Open Source computer software is that whose “source code”, the code which generates the software's system or purpose, is either in the Public Domain or, more commonly, is copyright-protected by one or more persons or entities and licensed to anyone according to an Open Source License. This usually grants permission to use and redistribute the software, as well as to modify its source code and distribute modified...

Wiki (pronounced: “Wickee”, not “Wickah”), was originally “WikiWiki” from the Hawaiian, or “Quick-Quick!”, and is used to identify a specific type of hypertext web page document or collection of documents, such as GetWiki, but it may also refer to the collaborative software used to create a “Wikipage”, such as GetWiki:Overview. How it works is by generating a normal web page in HTML from a normal document-type...

Metadata (“about” or “above” + “data” or “information”), literally “data about data”, is information that describes another set of data. A common example is a library catalog card, which contains data about the contents and location of a book: It is data about the data in the book referred to by the card. Other common contents of metadata include the source or author of the described dataset, how it should be accessed,...

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