In all the aspects, enhancements are more powerful than modifications, even given all the modification support that transaction SPAU offers. The reason is due to an important difference between an enhancement and a modification that stems from the conceptual difference between the two technologies.
Anthony Cecchini
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In contrast to enhancements in the Enhancement Framework, modifications are physically part of the object they modify. This means that every single modification gets lost in an upgrade and needs to be re-inserted even in cases where the underlying SAP object has not changed at all!
SAP NetWeaver 7.0 (formerly 2004s) offers the new Enhancement Framework that not only is intended to unify the modification and classic enhancement techniques, but also offers you almost the same flexibility as modifications without the limitations of modifications.
With all their new features, the latest versions of the ABAP Editor, I thought it best to appreciate the new features; we should first go back in time to see some of the limitations that were present in prior versions of the editor.
The tools of the New ABAP Debugger are optimized for the different debugging situations you may have to deal with during the course of solving a problem. Some of the tools you will recognize from the Classic ABAP Debugger; others are brand new. Before we look at a few of the tools and how to use them, lets first get comfortable with the tools menu and how the tools are organized.
The New ABAP Debugger User Interface and how to customize the user interface.
SAP introduced the “New ABAP Debugger” with SAP NetWeaver ’04, which includes a new architecture that enables analysis of all ABAP programs and a state of the-art user interface. The architecture of the New ABAP Debugger, which has been developed from the ground up, will provide for a more flexible and intuitive user interface.