During the Configure AUTOSAR Interface, how the ComputMethods connect to any parameter interface & how to configure all Interfaces as Application instead of Implementation.

During the Configuration of Autosar Interface, I find that ComputMethods for boolean (Parameter Interface), automatically generated but I am not sure how parameter interface attach to it, because I don't see this with other type of parameter interface. what change is required if I would like to have CompuMethods for all the parameter interface type.

When I configure automatically, or manually in "Configuration of Autosar Interface" in simulink, I found that it creates implementation data type and underneath it tied to base type, how can we change this to Application data type ?