[Mediawiki-l] predefined article format

[Sticky Bit]

Hello!
I'm Kev and for a project i have to install and work with wikimedia.
The installation worked fine but now i have a little problem. 
For my project the registered user can write articels but he should only fill in predefined fields. For example: when the user will write an articel he sees 3 fields. One for the name of the article, one for the text and one where he can wrtite when he find or made the text.
Is this possible with wikimedia and how can i implement this?

Thank you for your help.

PS: Please apologized my english, it isn't very well.
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