A factory is the way to go.

As for the big switch statement, your other options include:

• Configuration/lookup file
• A database
• Reflection

I think the reflection route is the easiest to maintain.

A factory is the way to go.

As for the big switch statement, your other options include:

• Configuration/lookup file
• A database
• Reflection

I think the reflection route is the easiest to maintain but the complexity arises when you don't already have the type (assuming your "type" is a Type).

Since you already have the type, the rest is real easy:

public static Task GetByType(Type taskType) { return Activator.CreateInstance(taskType) as Task; }