Defining Cost Elements

Summary:

Please share your experience - if its recommended to have cost elements(Material, Resource, Overhead, Material Overhead, etc.,) defined separately for each reference data set so that each line of business using these elements has better control of their cost elements& does not interfere with other LOB; does Oracle recommend this approach or is it recommended to have common cost elements- Material, Resource and Overhead under common set

Content (required):

I have been following the approach of defining cost elements separately for each LOB and it worked well as per business needs whether for reporting or better control when same set of elements are not used across the enterprise.