Notes

1. The entity of interest here is the AwardedDegree (dark blue in the center of the figure).  The AwardedDegree is a relationship between a Person and an AcademicDegree.  The AcademicDegree can be considered "abstract."  The AwardedDegree is concrete – a person received the degree from a university at a particular time.  VIVO provides a controlled vocabulary of AcademicDegrees. Note that the label for the degree is on the AcademicDegree.
2. The AwardedDegree has an associated EducationalProcess, which contains attributes of the AwardedDegree.  The EducationalProcess has a DateTimeInterval.  See DateTimeValue and DateTimeInterval Models for detail.
3. See Organization Model for details regarding the modeling of organizations

4. For a list of AcademicDegrees, use the SPARQL query below

   SELECT ?s ?name
   WHERE {
       ?s a vivo:AcademicDegree .
       ?s rdfs:label ?name .
   }
   ORDER BY ?name

5. See Person Model for details regarding the modeling of people