Query to parameterize some value in parameter file and use in BODS

Hi Experts,

I want to parameterize some value in parameter file and want to use that value from parameter file in BODS jobs/workflow/dataflow etc.

For example: I want username, password, database host to define in parameter file which is define in text file in machine hard disk and use in BODS. If we change in parameter file, it should be reflected at all places in BODS.

We are unable to get parameter file concept in BODS.

I am seeking your epertise in this issue and awaiting your response for the same.