Advantages of the Model First, Database First and Code First approaches - Entity Framework

Model First:

• Good support with EDMX designer
• We can visually create the database model
• EF generates the Code and database script
• Extensible through partial classes
• We can modify the model and update the generated database.

Database First:

• An existing database can be used
• Code can be auto-generated.
• Extensible using partial classes/ T4 templates
• The developer can update the database manually
• There is a very good designer, which sync with the underlining database

Code First:

• There is full control of the model from the Code; no EDMX/designer
• No manual intervention to DB is required
• The database is used for data only