Since beginning of SAP R/3(ERP) product launch "SAP Basis Administrator" was the term coined for people who were managing SAP systems. After several years SAP introduced SAP Netweaver platform and tried to rebrand SAP Basis as SAP Netweaver Administrator as the NW based SAP systems were running on Netweaver Application Server (NW AS) . But the word BASIS stuck in the minds of PMOs, HR, Account Mangers, Resource Mangers, SAP consultants, Job Boards as the term was frequently used.
Finally there's no difference between SAP Basis Administrator (or) SAP NetWeaver Administrator.
Tags: SAP Basis Administrator vs. SAP NetWeaver Administrator, Diffrence between SAP Basis Administrator vs. SAP NetWeaver Administrator, difference in sap basis admin and consultant