Overview of BW 3.x to 7.x migration possibilities per BW objects

I was curious how migration of BW features and objects from version 3.x to 7.x is supported by SAP functionalities. Especially what are the tools available (if there are any) and basically what does it takes to perform such an upgrade? 

I went through a lot of documents available on SDN and here’s the short summary of possibilities that we have in case of migrating particular BW objects within upgrade or migration projects.

Further follow-up with these materials:

Steps for Migrating 3.x Dataflow into 7.x Data Flow

SAP NetWeaver 7.0 Migration of Business Explorer and BI Integrated Planning

Migration of 3.x objects to BI 7.0

Upgrade to NetWeaver BI 7.0 - SAP Notes

Upgrade from BW 3.X to BI 7.0 SP13

Changes in BW 7.0 and BW 3.5

Migration of 3.x BEx Queries to BI7.0 - Useful Tips

Queries or Workbooks Migration - Errors and Fixes

- 06-03-2013 update –

There is a new migration cookbook available prepared by SAP aiming ot make 3.x to 7.x BW objects migration easier. Have a look into SAP Note: 1807522 - BEx 3.5 Objects Migration to BEx 7.0