Classification
Within the real world you find the following definition of classification:
Classification is a process related to categorization, the process in which ideas and objects are recognized, differentiated and understood.
Classification is the grouping of related facts into classes. It may also refer to a process which brings together like things and separates unlike things.

Using classification in a SAP system supports users when searching for SAP objects. There is less emphasis on entering an exact object number, and more on entering object attributes and values.
You can search for a forklift, for example, according to the used engine, or the possible tonnage. You find objects that match your search criteria exactly, or are similar to them within your defined limits.
Classification Functions
Watch the following video to understand how to use classification functions in your SAP system.
Characteristics
When you start with the creation of characteristics you first have to define the data type and the behavior of possible values. Next, you define allowed values for your characteristic.
Simulation: Managing Characteristics
Please perform the following simulation Managing Characteristics to get a first impression of what working with characteristics could look like. Characteristics are going to be created and values are assigned.
Classes
When you start with the creation of classes you have to select the right class type. This class type corresponds with the SAP object type.
Next you assign the relevant characteristics.
Simulation: Managing Classes
Please perform the following simulation Managing Classes to get a first impression of what working with classes could look like. You also assign your characteristics to your class.
Assignment and Value Assignment
The classification of objects means the assignment of objects to a class and the assignment of characteristic values to the objects.
This classification can either occur directly in the object or in relevant transactions in the classification area.
Simulation: Managing Class Assignments
Please perform the following simulation Managing Class Assignments to get a first impression how to link your Product to a class and do a characteristic value assignment.
Finding Objects
A classification search can be executed in several places.
You can start the search directly, or call it from the classified object.
Simulation: Finding Objects in Classes
Please perform the following simulation Finding Objects in Classes to get a first impression of what a class search could look like. You enter a class and class type, perform a value selection and execute your search.