11i (11.5.10.2) to R12 upgrade
For example
1) Copy EBS11i to HCM_EBS11i
2) Upgrade HCM_EBS 11i to R12 (If possilble upgrade HCM module alone)
3) Somehow establish connection between EBS11i and HCM_EBSr12 for financial data flow.
4) Let HCM users use HCM_EBSr12 and others use EBS11i
5) Later Migrate EBS11i to R12.
Is above upgrade plan possible?