Tks guys appreciate all the help been given. I been reading an this is what i found:
1) Need to be done one "Analysis Session" 5 weeks before the migration, is necessary do all preparations guide by the issue report.
2) Clone the data base on the productive environment.
3) Export from "source system".
4) Import from "target system".
5) 6 weeks later have to be done the "Verification session", and apply all the recommendations listed.