implemented by using TaggingApi and PimOntology

for all use cases we use only applications listed in UseCaseApplications

= Prerequisite =

User has a PIMO, PIMO is filled with a view things. The resource to be annotated is identified by a uri. 
Options: the tag already exists or not, the resource is already stored in the resource-storage or not.

= Result =
The resource is tagged as being an occurrence of the thing. Thing and occurrence-triple are stored in pimo,
resource is stored in resource-storage (if not already).

= Trigger =
User presses button "tag" in the application.

= Procedure =
Paul tags a document as being an occurrence of the ESWC2006

 * User opens application, selects a resource. - resource "Document about ESWC2006"
 * user presses "tag" button
 * A text-edit comes, user can enter the letters "ESW..."
 * system guesses the rest of the word and shows possible tags
 * If tag exists:
   * user selects it
   * press ok - the resource is connected to the tag
 * If tag does not exist:
   * user has to enter whole tag: ESWC2006
   * System creates new tag in PIMO, with uri being created as paul:ESWC2006  
   * System gives paul:ESWC2006 the class pimo:Topic
   * tag is connected to uri
 * User interface shows the tag next to the document
= Alternatives =
 * the document is not yet in the resource-store: the application or gnowsis has to store the document's uri, fulltext, type, and label. then link the uri. 
   * or the application has to ping aperture to re-crawl (maybe just this?) and it will appear?
 * The user selects more than one resource, either multi select, or a folder of emails, f.x. ?