1. A system comprising: a plurality of inter-related first objects that share a predetermined password; and, a plurality of first object-oriented interfaces defining methods supported by the inter-related first objects, the first object-oriented interfaces publicly made available by the inter-related first objects and queryable by second objects and the inter-related first objects to learn of the first object-oriented interfaces; each first object-oriented interface including a password argument to limit access thereto to the inter-related first objects sharing the predetermined password.