I am looking for some guidance on parallel testing.
I am working with a very complex financial application. There are many modules within the application. The customers would like to have year of parallel testing done on a test environment prior to move to Production.
Complicated aspect of this is that are many variables.
1. It is still in development state although there are couple modules already in complete state, some are in the development state and some are in requirement gathering state. Parallel testing is to be done with all the modules integrated.
2. Data change every month. Actual data changes month to month. Making confusion on what is to be expected.
3. Process of data change every month. The monthly processes changes.
I have known and worked with parallel testing, after the code is complete. I have no clue where to start with this type. I would like start with the test plan, but could use help to define the approach for the plan.