Fluent NHibernate
Standard Mapping Conventions

As with the Auto Mapping, you can specify conventions to be used when your entities are pushed into NHibernate. I'll use the Fluent Configuration API to illustrate how to set these conventions.

Fluent.Configuration()
  .Database(SQLiteConfiguration.Standard.InMemory)
  .Mappings(m =>
    m.FluentMappings
      .AddFromAssemblyOf<Entity>>()
      .ConventionDiscovery.AddFromAssemblyOf<MyConvention>())
  .BuildSessionFactory();

You can read more on conventions in general on the Conventions page.