Process Chain Data flow

Hi SDN Guru,

I am currently working BW 3.5 version, I have two scenerio for creating process chain

Scenerio 1:-

We have Datamart for BW 3.5 version we need to create Process chain.

DSO 1 -->  DSO2 --> Info cube

Scenerio 2:-

We want to build a single process chain BI 7.0 and for 3.x flow

Because SD module some infocube created BI 7.0 Dataflow and some infocube 3.x Data flow. So finally I need create one process chain both data loading.

How to create both one process chain.

Please give me step by step and if you have any another documents pls send me.

Thanks in Advance……..Master.

Regards,

Vijay