Your data model is just a visual or text-based representation of the data that you will need to keep track of to implement your application.

What are the pieces of data?

• Trips, Attractions, Wishlist, etc.

What are the relationships between different pieces of data?

• User has many trips
• Trips have 1 Wishlist
• Trips have many attractions
• etc.

Trip Table

Attraction Table

Wishlist Table (this is referred to as a lookup table)