Bidi Migration & Unicode/ Non-unicode systems

Hello Experts,

We currently have a 4.6C system which requires a BIDI migration and a gui upgrade because we're working in HE language. We also have an ECC system which is defined as Non-Unicode.

We are re-implementing on a new ECC system which is defined as Unicode, which will replace the 2 existing systems and we'll need 2 types of data transfers:

1) Migration of existing master & trans. data

2) On-going interfaces between the legacy systems and the new system(probably using XI)

My questions are:

1) Do we need to perform the Bidi Migration in a special way

2) How do we need to write the data migration programs (special features and/or considerations)

3) How do we need to define the interfaces to support non-unicode / unicode data transfer

Your answers will be greatly appreciated

Einat