A computer-readable medium including instructions for performing a method for implementing a reusable template entity within a software system. The method includes retrieving a template entity from a repository in response to a request, wherein the template entity contains a plurality of elements related to a plurality of roles associated with the template entity and determining, based on metadata related to the at least one template entity and the request, a list of elements from the plurality of elements to undergo state modification. The method further includes adapting the template entity according to the list of elements to yield a projected entity and providing an instance of the projected entity.