ABAP RESTful Programming Model in ABAP Release 7.53

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From release 7.33 on, the ABAP RESTful Application Programming Model (RAP) is introduced.

This mainly involves:

RAP Business Services (BS)
RAP Business Objects (RAP BO)
- BDL for Behavior Definitions
- ABAP Behavior Pools (ABP)
ABAP EML
BDEF Derived Types in the ABAP type concept.

In the beginning, so-called unmanaged RAP BOs can be created with the addition unmanaged of the RAP BDL when defining a RAP BO. This scenario is intended for brownfield developments with existing application code. All operations and services must be implemented by the application developer.