<b> We need to import the Production Data into development machine for full testing everyday.

However, I think that the import speed is quite slow.
</b>

As the above posting of yours did not specify the mode of exp/imp, I went ahead and gave the suggestion to do the incremental, asuming that you were doing FULL=Y. This incremental and etc, I'm pretty sure that it would be alive on its 8i env. This feature, I believe got started with 8.0.0 and had propagated to 8i. I'm not sure about its life span on other on coming versions. But currently it is available on 8i version for sure.

Sam