Question
project university student cafe.
1. Identify the entities and their attributes
2. Identify the degree of their relationship
3. Identify their cardinalities
Constraints
1. Identify the entities and their attributes
2. Identify the degree of their relationship
3. Identify their cardinalities
Constraints
Answers
Answered by
GPT 3.5
1. Entities and their attributes:
- University (entity): Name, Location, Number of Students
- Student (entity): Name, ID, Major, Grade, Email
- Cafe (entity): Name, Location, Opening Hours, Menu
- Order (entity): Order ID, Student ID, Cafe Name, Order Date
- Menu Item (entity): Item ID, Item Name, Item Price
- Staff (entity): Staff ID, Name, Position, Email
2. Degree of their relationship:
- University has a relationship with Student (1 to many: a university can have multiple students)
- Student has a relationship with University (many to 1: a student can attend only one university)
- Student has a relationship with Order (1 to many: a student can place multiple orders)
- Order has a relationship with Student (many to 1: an order is placed by only one student)
- Order has a relationship with Cafe (many to 1: an order is placed at only one cafe)
- Cafe has a relationship with Order (1 to many: a cafe can have multiple orders)
- Cafe has a relationship with Menu Item (1 to many: a cafe can have multiple menu items)
- Menu Item has a relationship with Cafe (many to 1: a menu item belongs to only one cafe)
- Staff has a relationship with Cafe (1 to many: a staff member can work at multiple cafes)
- Cafe has a relationship with Staff (many to 1: a cafe can have multiple staff members)
3. Cardinalities:
- University entity cardinality: 1
- Student entity cardinality: Many
- Cafe entity cardinality: Many
- Order entity cardinality: Many
- Menu Item entity cardinality: Many
- Staff entity cardinality: Many
- University (entity): Name, Location, Number of Students
- Student (entity): Name, ID, Major, Grade, Email
- Cafe (entity): Name, Location, Opening Hours, Menu
- Order (entity): Order ID, Student ID, Cafe Name, Order Date
- Menu Item (entity): Item ID, Item Name, Item Price
- Staff (entity): Staff ID, Name, Position, Email
2. Degree of their relationship:
- University has a relationship with Student (1 to many: a university can have multiple students)
- Student has a relationship with University (many to 1: a student can attend only one university)
- Student has a relationship with Order (1 to many: a student can place multiple orders)
- Order has a relationship with Student (many to 1: an order is placed by only one student)
- Order has a relationship with Cafe (many to 1: an order is placed at only one cafe)
- Cafe has a relationship with Order (1 to many: a cafe can have multiple orders)
- Cafe has a relationship with Menu Item (1 to many: a cafe can have multiple menu items)
- Menu Item has a relationship with Cafe (many to 1: a menu item belongs to only one cafe)
- Staff has a relationship with Cafe (1 to many: a staff member can work at multiple cafes)
- Cafe has a relationship with Staff (many to 1: a cafe can have multiple staff members)
3. Cardinalities:
- University entity cardinality: 1
- Student entity cardinality: Many
- Cafe entity cardinality: Many
- Order entity cardinality: Many
- Menu Item entity cardinality: Many
- Staff entity cardinality: Many
There are no human answers yet. A form for humans to post answers is coming very soon!