Patent Document ID: 4677587
Application ID: 06733822
Patent Flag: 1

Claim One:
1. An interactive simulation system for iteratively simulating a complex system represented by a network of interconnected function blocks, the network including at least one input and an output, each function block including means for executing a primitive operation in the simulation and at least one input for receiving an input value to be processed by the function block and an output for transmitting an output value, at least one of said function blocks representing a delay function, said delay function block receiving an input value during an iteration and for transmitting a value representative thereof during a subsequent iteration, said simulation system including input means for receiving from an operator an identification of the function blocks to be used in the simulation from the input of the network to the output of the network with any delay function blocks entered last request, means connected to said input means and operable after all of the function blocks have been entered for requesting the operator to specify the input connection to each of the inputs of the function blocks in the order in which the function blocks were entered, and test means connected to said request means responsive to each entry of a function block input connection for testing to determine whether the input connection was to a previously entered function block or to a delay function block.