In this article we propose a new way for enriching technical models that drive contemporary enterprise. Our proposition is to take into account a new stage in the object lifecycle: at its end, it enters into a new phase that we call "heritage lifecycle". Indeed, many old technical objects fall in ruins and are destroyed after their uses. After capitalization, we propose to conserve them vir- tually. Thanks to virtual tools coupled to database, it will help us to define a new information system for driving the long life cycle of objects: it is the Digital Heritage Reference Model, DHRM. This information system will be implemented in a new PLM ded- icated to museum, place where know-how and mankind's knowl- edge is stored and promoted when possible. Museum-related PLM would eventually interact with enterprises PLM as a bi- jective enrichment.