What is Modularization in SAP ABAP Programming?
The concept of modularization is divided the main program into sub-programs for better readability
and re-usability. Modularization can be implemented in the following ways:
- Include Programs.
- Function Modules.
- Sub-routines.
- Classes.
Include Programs:
- These programs can not be executed directly.
- These are sub-programs which contains a set of re-usable statements.
- These programs doesn't contain parameter interface, that is no importing and exporting parameter.
Function Module:
- These are also sub-programs which contains a set of reusable statements for better readability and re-usability.
- Function modules contains parameter interface, that is importing and exporting parameter.
- These function module can be executed independently.
- Function modules contains exception to catch certain type of error.]
For functional modules T-code is : SE37.
Sub-routines in SAP ABAP:
- Sub-routines are sub-programs in SAP ABAP which contains certain re-usable statement.
- We use sub-routines for re-usability inside the program.
- We use sub-routines for external re-usability.
- Sub-routines contains importing and exporting parameters.
Classes in SAP ABAP:
- Classes are used for better re-usability.
- Classes are object oriented in SAP ABAP.
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