What is SAP ECC ,ERP and SAP Netweaver -Confusion ?

Always we get confusion in ECC ,ERP and SAP Netweaver,Also one of the favorite question of interviewer:

What is SAP Netwaver:

SAP Netweaver is the application and technology platfrom for all SAP-Based Application, From SAP Netweaver 2004 onwards all the SAP present and future SAP Applications are based on Netweaver.

Netweaver has different stacks as follows.

1. People Integration >> Here it works as portal– EP and SAP Mobile .
2. Information Integration >> Here it works as BW and MDM
3. Process Integration >>Here it works as Process Intregation PI

These 3 usages are considered as Pure Netweaver systems as BW ,PI or Portal

Most importatant is :
4. Application Platform (Ex: ABAB & Java engine) >>> Here it works as Base for all other SAP applications or modules,e.g Base for ECC,SRM,CRM and SCM.

What is ECC:

ECC is an application component, which will work on with the help of this Application/Technology Platfrom – or we can say Netweaver ,It requres base at the bottom (NW).ECC6 is called as Enterprise Core component, which has basic modules of ERP like (FI, CO, MM and So on)

SAP ECC 5.0 is part of SAP ERP 2004 [which runs on SAP NetWeaver ’04]
SAP ECC 6.0 is part of SAP ERP 6.0 (2005) [which runs on SAP NetWeaver 7.0 (2004s)]

What is ERP:

SAP ECC is part of the SAP ERP application (actually it is the minimal installation of SAP ERP). It is complete package.It stands for Enterprise Resource Planing

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