19. The article of manufacture of claim 13 , wherein the weight for proximity is calculated based upon a user's access to each artifact associated with the identifier retrieved from the primary repository.
19. The article of manufacture of claim 13 , wherein the weight for proximity is calculated based upon a user's access to each artifact associated with the identifier retrieved from the primary repository. 20. The article of manufacture of claim 19 , wherein the weight for the proximity for a user with a direct access to the artifact is computed as a maximum weight for the proximity.