3. The system of claim 2 , wherein a relation token references: one or more connections amongst instance tokens; a source token being one of a class token and a cluster token, the source token representing a source of the connection; and a target token being one of a class token and a cluster token, the target token representing a target of the connection.
4. The system of claim 3 , wherein the relation token includes one or more connection options associated with the connection amongst the instance tokens, the connection options comprising: a constant option indicating that an associated connection is constant and cannot change over time; a variable option indicating that an associated connection is variable and changeable over time; a copied option indicating that an associated connection must generate an immutable copy of one or more instance tokens associated with the connection; and a linked option indicating that an associated connection must not generate an immutable copy of one or more instance tokens associated with the connection.