sap - What is the difference between class alv and function alv -

We are using class alv and function alv, what is the difference between those options?

• some differences:

  • You can create a screen using the module but to make the classes screen call different program.
  • Classes are more secure than FM
  • Increases class type performance
  • Class is OO, it allows greater flexibility
  • Better re-usability will be allowed in FL in classes Because the object is oriented.
  • Classes are provided immediately when the function is not in the group.
  • Objects are examples of class, but FMs are not examples of a function group.
  • Function module can be implemented asynchronously and it can be remotely termed as other system.
  • A program can work with examples of multiple function groups at the same time, but it can not work with multiple instances of a single function group.

    * It may also be helpful.

    Hope it was useful

    Talha