19. The method as in claim 15 further comprising storing the received changes and identified portions.
15. A method for using a meta-data library to manage life-cycles of network models comprising: receiving at least changes associated with one or more telecommunication models; comparing the received changes to one or more stored telecommunication models; identifying portions of the compared one or more stored telecommunication models affected by the received changes; generating a version of each stored model affected by the received changes; and forwarding a version of one or more models to a mediation unit to enable the generation of one or more normalized models.