services to select during the PI 7.1 installation ?

Hi Guys,

I am installing PI 7.1 and i am sure i need to select AS ABAP and AS Java and PI Usage Type. I see different options. Can somebody tell me what are the other options i need to select. I see the following options

1. Java EE engine update

2. Database Instance (AS ABAP)

3 Primary Application Server Instance (AS ABAP)

4. Dialog Instance (AS ABAP)

5. liveCache Server

6. Database Instance (AS Java)

7 Primary Application Server Instance (AS Java)

8 Application Server Instance (AS Java)

9 Central Services Instance (AS Java)

10. PI Usage Type

any help would be really appreciated

Thanks,

Srini