What is CDS abstract behavior definition in SAP BC-ESI-RAP - RESTful ABAP Programming Model?

SAP Term: CDS abstract behavior definition

• Component: BC-ESI-RAP

• Component Name: RESTful ABAP Programming Model

• Description: CDS abstract BDEF or abstract BDEF for short. A CDS abstract behavior definition is a CDS behavior definition of implementation type abstract. It is based on a CDS abstract entity and it mainly serves as typing mechanism for deep action or function parameters.

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• Key Concepts: 
  CDS (Core Data Services) is a data definition language used to define and consume semantically rich data models in SAP HANA. It is part of the ABAP programming model and provides an abstract behavior definition for the RESTful ABAP Programming Model. This allows developers to define data models that can be used in both ABAP and HANA applications. 
  
  How to use it: 
  The CDS abstract behavior definition is used to define the behavior of a data model. This includes defining the structure of the data, the relationships between different elements, and any additional logic that needs to be applied. The CDS abstract behavior definition can then be used to generate a RESTful API that can be used to access the data model from an external application. 
  
  Tips & Tricks: 
  When defining a CDS abstract behavior definition, it is important to consider how the data will be used in both ABAP and HANA applications. This will help ensure that the data model is optimized for both environments. Additionally, it is important to consider how the data will be accessed from an external application when designing the RESTful API. 
  
  Related Information: 
  For more information on CDS abstract behavior definitions, please refer to the SAP Help Portal documentation on Core Data Services (CDS). Additionally, there are several tutorials available online that provide step-by-step instructions on how to create a CDS abstract behavior definition and generate a RESTful API.