Are 'Strategic Objective' and 'Goals' obsolete in SPMs Goal Framework?

[RogerRK]

I'm exploring the Goal Framework of SPM and am trying to understand the hierarchy from a demands perspective. So far, through now learning and documentation, it seems that: 

Primary Goal (sn_gf_goal_list.do)  rolls up into Strategic Priority (sn_gf_strategy_list.do), which rolls up into Strategic Plans (sn_gf_strategic_plan_list.do). All for measuring progress. 

What I cannot find are Strategic Objectives (strategic_objective_list.do) and Goals (goal_list.do).

1) Are these fields remnants of when SPM was ITBM and now obsolete? Or do they still serve as a measurable in SPM? 

2) What is the purpose of Business Unit Strategies (business_unit_strategy_list.do) in SPM or is Business Unit now used as an Assigned Entity in SPM, such as on the Goals table (sn_gf_goal_list.do)? 

I'm trying to decipher what is obsolete and a holdover from ITBM and need to be sure that the tables in sn_gf are to be used for SPM. 

Thanks