What are the similarities and differences between both structural and multi-generational family therapy?

Under the family systems umbrella of treatment there are multiple therapeutic models. family therapy and multi-generational family therapy.
• What are the main components of structural therapy?
• What are the main components of multi-generational family therapy?
• What are the similarities and differences between both structural and multi-generational family therapy?
• A detailed exploration of which theory you would subscribe to and why. Structural Therapy is my choice.