Which Reports should be done in BI & which Reports in ECC/ABAP

Question

Hi,
We are implementing SAP ECC & BI in Laggard manner or near simultaneously. Now I as a BI consultant need to suggest which reports should be created in BI & which ones in ECC itself?
I understand that more aggregated, summarised or analytical sorts of reports, also those which need slice & dice & drilldown during navigation should be in BI.
But also apart from these points is there any thumb rules or fundas to decide??
Pl give me ur guidence generously...
Regards,,,

Answer 1

It's look like your client first time using BI system, He might be aware or not aware of ECC.
It's happen mostly that when ECC & BI Immplemention happen simultiounsly, That time Client's as well as Project Management team concentration on ECC not on BW.
1) You check on which Functional Modules reports client is expecting.
2) Then check and install Standard Data flow and reports in your SandBox.
3) Then show thease reports of respective module to your Functional team so they also be understand what is possible in BW or not possible.
4) If your Functional team satisfy with the report's output. Then take training programe for user (Not everybody but few people from Client side). Once they understand how system is working then they will come with their requirement. There your job as Techo-Functional consultant "Can it is possible in BW side with respect to business logic?" there you are have decide.
Regards,
Sushant