Suggestion regarding core-data based apps

Question

what are the steps to simply create a core-data application(using window based apps). without using core data for storage at the time of creating new project

Answer 1

• add and configure your managed object model
• define the managed object model, persistent store coordinator and managed object context objects somewhere in your app (often the app delegate object)
• convert your controllers to use the new model

In the conversion step, I normally break it down to:

• perform any inversion of control necessary so that the controllers are given their model obejcts (tell, don't ask)
• define protocols describing the existing model API
• make the existing model classes conform to the protocols
• make the controller objects use these protocols instead of the model classes
• define NSManagedObject subclasses that conform to the protocols
• ensure the managed object subclasses are specified in the managed object model