For a testbench/verification component developer, using the model independent transactions allows a developer to focus on just the internals of the verification component. Directive transactions can be copied from models of a similar class. This helps save time in testbench development.

For the test case developer, model independent transactions provide address bus interfaces and streaming interfaces with a common set of transactions (API). This makes writing test cases easier since the transaction interface (API) is already familiar.  This also facilitates either re-use of test sequences between different verification components or porting tests from one interface to another.   

This webinar provides a guided walk-through of the OSVVM model independent transactions.

Benefits of OSVVM