Model-first development lets you generate DDLs from user-defined EDMs.
Create a project in Visual Studio.
Create an EDM, and edit it to define tables and associations.
From the Properties view, select SSDLToASE155.tt(VS) as the DDL generation template.
Right-click the Entity Designer window and select Generate Database from Model.
In the Generate Database wizard, choose a connection and click Next.
A DDL script is generated.
Click Finish.
The DDL script is added to the project and the DDL is created.