How to promote code from one environment to another environment?

Scenario:
I need to promote my project from Development environment to SIT environment.

Approach:
Step 1:
Login to ODI Dev Work Repository.
Go to Designer Navigator -- Click on designer menu  -- Click Export -- Select Smart Export and then click ok.

Provide location where you want to export your porject.

Step 2:
Now drag and drop your project from designer navigator into the pop-up and click ok

Step 3:
Login to ODI SIT Work Repository.
Go to Designer Navigator -- Click on designer menu  -- Click Import -- Select Smart Import and then click ok.

Provide location where exported earlier and click on next.


Step 4:
Then it will opens following pop-up

Expand Topology -- 

If you want to use the objects which exported latest means you need to select overwrite. If you want to use already existing object means you need to select re-use. If it is completely new object it will create copy of it. If  want to ignore an object then you need to select ignore.

For example:

Then click ok.

Hence completed successfully!!!