Not original. From http://abaptutorial.blogspot.com/2006/01/sap-abap-transaction-codes.html
SE11 ABAP/4 Dictionary Maintenance SE12 ABAP/4 Dictionary Display SE13 Maintain Technical Settings (Tables)
SE12 Dictionary: Initial Screen – enter object name.
SE13 Access tables in ABAP/4 Dictionary.
SE14 Utilities for Dictionary Tables
SE15 ABAP/4 Repository Information System
SE16 Data Browser: Initial Screen.
SE16N Table Browser (the N stands for New, it replaces SE16). Provided by Smijo Mathew.
SE17 General Table Display
SE24 Class Builder
SE30 ABAP/4 Runtime Analysis
SE32 ABAP/4 Text Element Maintenance
SE35 ABAP/4 Dialog Modules
SE36 ABAP/4: Logical Databases
SE37 ABAP/4 Function Modules
SE38 ABAP Editor
SE39 Splitscreen Editor: Program Compare
SE41 Menu Painter
SE43 Maintain Area Menu
SE48 Show program call hierarchy. Very useful to see the overall structure of a program. Thanks to Isabelle Arickx for this tcode.
SE49 Table manipulation. Show what tables are behind a transaction code. Thanks to Isabelle Arickx for this tcode.
