Do you need details?
Lets say, SAP Portal naming progress: SAP EP > SAP NetWeaver Portal > SAP Portal
ERP: SAP R/3 > SAP mySAP ERP 2005 > SAP ECC 6.0 > SAP ERP 6.0
SCM: SAP APO > SAP SCM
SAP PI: XI > PI > PO
So, how do you imagine the team who are inventing the product names?
Are they someone thinking alone and then crying out: Eureka!
Or a group of people thinking about it?