DDIC, Reports (Classical, Interactive, ALV, Interactive ALV), Function Modules, BAPIs, User Exits, Customer Exits, Implicit Enhancements, BADI, File, IDOCs (Outbound, Inbound, Change pointer, Configurations),Pricing routines, Smartforms, SAP scripts, BDC, BW Extractors, Adobe forms, Module Pool for RF Scanner, Workflow, Web Service, Odata services, ABAP Security, TR Management.