Here is a conceptual Entity-Relationship Diagram (ERD) for our conceptual reservation system. This diagram includes entities such as Customer, Reservation, and Resource, along with their attributes and relationships.

erDiagram %% Customer Entity Customer { int Id string FullName string Email string Phone } %% Resource Entity Resource { int Id string Name string Description int Capacity } %% Reservation Entity Reservation { int Id int CustomerId int ResourceId DateTime StartDate DateTime EndDate string Status } %% Relationships Customer ||--o{ Reservation : "creates" Resource ||--o{ Reservation : "associated with"

Explanation

  1. Entities:

    • Customer: Contains attributes like Id, FullName, Email, and Phone to store customer details.
    • Resource: Includes attributes such as Id, Name, Description, and Capacity to represent items or venues available for reservation.
    • Reservation: Represents the booking and contains fields like Id, CustomerId, ResourceId, StartDate, EndDate, and Status (e.g., Pending, Confirmed, Cancelled).

  2. Relationships:

    • A Customer can create one or more Reservations, resulting in a one-to-many relationship.
    • Each Reservation is associated with a single Resource, but a Resource can be reserved by multiple Reservations, forming another one-to-many relationship.

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