View source for Property:Usage obligation

This [[isA::Meta-Property|meta-property]] of the datatype [[Has type::Text]] is used to annotate properties in Open Research with regard to their relevance in the context of the [https://projects.tib.eu/confident ConfIDent] project. 

It has the following allowed values:
* [[Allows value::mandatory]]
* [[Allows value::recommended]]
* [[Allows value::optional]]

[[Priority_Milestone::iteration 1| ]]

= Usage guideline =
All Open Research properties that '''must''' be used to describe an academic event or event series need to be annotated with this property and the value ''mandatory''.

All Open Research properties that '''should''' be used to describe an academic event or event series need to be annotated with this property and the value ''recommended''.

All Open Research properties that '''can''' be used to describe an academic event or event series need to be annotated with this property and the value ''optional''.
IsA	Meta-Property +
Priority Milestone	iteration 1 +
Allows value "Allows value" is a predefined property that can define a list of permissible values to restrict value assignments for a property and is provided by Semantic MediaWiki.	mandatory +, recommended + and optional +
Has type "Has type" is a predefined property that describes the datatype of a property and is provided by Semantic MediaWiki.	Text +