The three types of loose coupling are:0 / 1 pointData; Message; Data StructureContent; Common; ExternalControl; Data Structure; LooseData; Message; None

The three types of loose coupling are: Data, Message, and Data Structure.

1. Data Coupling: This is when two modules interact through data. One module passes data to another module, which processes the data and returns it. The data is not shared by any other modules.

2. Message Coupling: This is the loosest type of coupling. It occurs when the communication between modules is done via message passing. No data is shared between the modules.

3. Data Structure Coupling: This occurs when a module passes an entire data structure to another module. The receiving module must know the layout and structure of the data structure to be able to process it.