After having evaluated already some wikis last year - for the need of setting one up one for internal project management purposes - I re-entered this stage today again for the case of online event documentations.

My requirements are as followed:

• Multi-Site Management - as from a discussion with Martin Koser - this can be realized by namespaces and different entry points towards the wiki system
• Multi-Site-Templating - I do not see any out of the box solutions by the standard wiki systems - maybe solved via a dynamic/intelligent template with different CSS style definitions
• Authentification against some third party system - KM users are set up in our community systems and must be authenticated against these applications
• Threaded discussion boards on wiki pages - the wiki is used for documentation purposes - once the documentation is finished it shall be discussed - this needs some kind of forum integrated in the wiki or at least the possibility of integrating a third party solutions (i.e. bbpress, Vanilla or punbb)

After digging in the WikiMatrix, doing some researching (see results) and talking to Martin Koser I started out in giving DokuWiki another try (DokuWiki was also the choice of my first evaluation a year ago!). Though Martin told me it’s the right choice I am not yet completely convinced - and therefore open for anymore suggestions.