Variations on the Model

• Compositing Model: Aggregate data from multiple Models, providing a single point of access to the View.
• Model Pipe: Intercept, modify, and filter data flow between Model and View.
• Application Model: Holds visual state to complement business logic state.
• Side-by-Side application model: Holds complementary information to the current model.
• UI Retrieving Model: Model retrieves information from the User through UI elements.
• ModelController: Aggregates Model and Controller logic in a single object.
• Local Model: Preserve the original Model state so that changes can be reverted.
• Value Model: Trivialize complex Model interface to a simple, universal interface.
• Proxy Model: Acts as proxy, hiding complexity to access resources from a backend.
• Collection Model: Holds and aggregates Model objects of the same type.
• View-aware Model: A model that knows its views interface beyond simple notification delivery.
• Caching Model: Holds data in local cache to mitigate slow access.
• Data/Metadata Model: Separate access to slow and bulky data vs. fast, lean and descriptive.
• Recording Model: Record the changes for later consumption.
• Transactional Setting: Setting multiple attributes at once with late notification.