GATT-based Bluetooth Profile Hierarchy

Generic Attribute Profile describes the structure following which a profile exchange data from one device to another. The basic elements of a profile are services and characteristics. Typically, a profile is made in order to achieve the desired task. Services and characteristics are the main components of a profile which can be described as the subtasks.

The pision of the GATT-based hierarchy is given here:

GATT based profile model with services, characteristics, and descriptors.