The doctype identifies the type of the document.

The property value is required to be text only. No macros are allowed.

There is a special document type called 'generic' that has this minimal set of properties and section. Usually the Documentation Architect defines a new document type, if a special kind of information is important and should be stored in its on structure. This will makes it easy for the team to keep these documents together and easily findable.

A document that is based on a doctype is called a document instance.

The doctype usually helps to select documents in queries and for the reader's orientation within the wiki.