⟩ How is Siebel 7.x data model is different from Siebel 6.0 data model?
S_PARTY is the base tables and S_CONTACT,S_ORG_EXT,S_POSTN, S_USER are now extension tables. Siebel 6.x was dedicated application while from Siebel 7.x onwards we can access Siebel application via web.
not only s_party table but also physical user interface layer will not be there in 6.x