layout designing

hi

whenever a business partner interacts with CSR <call center representative> he may not be able to identify automatically & therefore the CSR would have to search for business partner with the details that he has been provided with.

For this purpose i have been provided with some fields on basis of which layout is to be designed.

Now my question is :-

What r the steps for designing a layout <in detail>.?

Regards

Kamlesh