Subject Areas -- A logical GROUPING of tables related to a particular subject or application context. It also includes the tasks that are associated with the tables, 

as WELL as the tasks required to load the tables. Subject areas are assigned to execution plans, which can be scheduled for full or incremental loads

tables -- Phsyical tables in DB

Indexes -- Just like your PHYSICAL DB indexes

Tasks -- Unit of work for loading tables

Task groups ---- Grouping of tasks that can be bundled to run as a group

Execution plans -- A data transformation plans defined on subject areas that needs to be transformed at certain frequencies of time

SCHEDULES -- Determine how often execution PLAN runs.

Subject Areas -- A logical grouping of tables related to a particular subject or application context. It also includes the tasks that are associated with the tables, 

as well as the tasks required to load the tables. Subject areas are assigned to execution plans, which can be scheduled for full or incremental loads

tables -- Phsyical tables in DB

Indexes -- Just like your physical DB indexes

Tasks -- Unit of work for loading tables

Task groups ---- Grouping of tasks that can be bundled to run as a group

Execution plans -- A data transformation plans defined on subject areas that needs to be transformed at certain frequencies of time

Schedules -- Determine how often execution plan runs.