DokuWiki is just a wiki that has commercial support and is used throughout the world like Wikipedia. Doku wiki has support for many different features. However, you only need to be concerned with a couple which are:
Wiki's are alive. Wiki's are not static web pages, but something that grows, changes, and evolves over time. That's one reason why this format works so well for what we are trying to achieve. It's dynamic.
The wiki is a collection of pages, media, and links. Links are both internal and external. Pages have names that uniquely identify them. Media or media files are things like PDFs, Jpegs, PNG files, etc. Links are both internal meaning they link to other pages internal to the wiki and external meaning they link to the world-wide-web (WWW) URLs(uniform resource locator - Thank Tim Berners-Lee for that).
Pages link both internally and externally and contain media. The pages and links are editable and can evolve dynamically and quickly.
While you won't have to deal with this much, the following more advanced concepts may help to understand how things work behind the curtain.
Namespaces allow segmenting of pages and media to separate areas. Currently, there are two namespaces
I'm considering adding a bcexec namespace for stuff for just BC PB Executive members.
Plugins allow functionality to be added to wiki that does different things. Things like discussions, access control, logging. There are hundreds of plugins available for Dokuwiki. These are all free like the program as it is open source.
Access Control Lists allow controlled access to the wiki, its pages, and content. There is an administration, but the burden should be small.