diff --git a/Day 6 (problem domain entities)/CampusVisits.md b/Day 6-7 (problem domain entities)/CampusVisits.md
similarity index 55%
rename from Day 6 (problem domain entities)/CampusVisits.md
rename to Day 6-7 (problem domain entities)/CampusVisits.md
index 4be316e..e9ae25d 100644
--- a/Day 6 (problem domain entities)/CampusVisits.md	
+++ b/Day 6-7 (problem domain entities)/CampusVisits.md	
@@ -27,20 +27,35 @@ We would like a system to address the following:
 ## Entities
 
 - Users
-    - Role: boolean for each of: (coordinator, admin, tour guide)
-    - Busy times (for guides)
+    - *Coordinator* (boolean) - true iff the user coordinates between CV office and faculty.
+    - *Admin* (boolean) - true for superuser priviledges, such as creating and deleting users.
+    - *Guide* (boolean) - true iff the user can do campus visits for Computer Science.
+    - *Unavailable times* - (for guides only) a weekly schedule of regularly unavailable times for campus visits
 - Visits
-    - Possible times (start and end intervals)
-    - Visitors
-    - Where
-    - Decided time (start/end)
-    - Decided guide (if any)
-    - Status (proposed, assigned, completed, cancelled, conflicting)
+    - *Visitors* - a list of people in the visiting group
+    - *Possible times* - a list of time intervals in which the visitors are available on the visit day
+    - *Day* - a calendar day for which the visit has been scheduled of the campus visit office 
+    - *Decided time* - a time at which the guide has agreed to meet for this visit
+    - *Decided guide* - the guide which has agreed to conduct this visit
+    - *Status* - the current status of this visit:
+        - *Proposed* - created by the CV office, but no guide assigned
+        - *assigned* - a guide has agreed to do the visit, at a decided time
+        - *completed* - the guide has conducted the visit
+        - *cancelled* - the visit has been cancelled before it could be conducted
 - Visitors
-    - Role (prospective student, parent, etc.)
-    - Antipicated start semester
-    - Antipicated majors, minors
-- Existing campus visit system to sync with?
+    - *Role* - the type of visitor: prospective student, parent, or guest (other).
+    - *Antipicated start semester* - the start semester, as reported by the CV office
+    - *Antipicated majors, minors* - desired major(s) and minor(s), from the CV office
+    - *Type* - category (for prospective students only): high school, transfer, or non-traditional
+    - *Hometown* - name of city and state of origin
+    - *Notes* - other information pertaining to the visit that should be made known to its guide
+- Committment - the level of committment expressed by a given guide for a given visit 
+    - *Level* - possible values for involvement are: unknown, cannot, prefer not, can do, will do
+
+![UML Diagram](uml.png "Entity relations")
 
 ## Events
 
+
+
+TODO: Have conflicts reported by the system if detected.
diff --git a/Day 6-7 (problem domain entities)/uml.png b/Day 6-7 (problem domain entities)/uml.png
new file mode 100644
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