Changes between Version 12 and Version 13 of ERModel

Timestamp:

06/25/26 10:16:02 (2 weeks ago)

Author:

223091

Comment:

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ERModel

@@ -220 +220 @@
 * '''v02''' – Updated version of the ER model based on supervisor feedback. This version generalized reservations so that a reservation may include a room, equipment, or both. A new associative entity, ReservationEquipment, was added to represent equipment requested as part of a reservation. The Equipment entity was extended with ''stock_quantity'' to represent equipment available in general stock and not necessarily assigned to a specific room. The Rooms–Reservations relationship was changed into ''includes_room'' so that equipment-only reservations are allowed.
 
-* '''v03''' – Corrected version of the ER model based on additional supervisor feedback. The associative entities RoomEquipment and ReservationEquipment were removed from the conceptual ER model. Instead, the many-to-many relationship between Rooms and Equipment is represented as ''has_equipment'' with the relationship attribute ''quantity'', and the many-to-many relationship between Reservations and Equipment is represented as ''requests_equipment'' with the relationship attribute ''requested_quantity''. This version avoids foreign keys in the ER model and keeps only strong entity sets and conceptual relationships.
+* '''v03''' – Corrected version of the ER model based on additional supervisor feedback. The associative entities !RoomEquipment and !ReservationEquipment were removed from the conceptual ER model. Instead, the many-to-many relationship between Rooms and Equipment is represented as ''has_equipment'' with the relationship attribute ''quantity'', and the many-to-many relationship between Reservations and Equipment is represented as ''requests_equipment'' with the relationship attribute ''requested_quantity''. This version avoids foreign keys in the ER model and keeps only strong entity sets and conceptual relationships.
 
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