Us LEC C P VING GROUND-

The Network Traffic Analysis Model is a fully documented time and event oriented dynamic model which simulates the actions of indi-vidual equipment at the macro decision level. All multichannel related equipment in a communications system and their interactions are simulated so as to arrive at an analysis tailored to each individual problem. The basic program is titled the "Simulation Model for Inter-ference Analysis of Nodal Systems " (SIMIANS). SIMIANS consists of many programs which simulate a "black box " or group of "black boxes" r ~ for each general type of equipment, (for example, a message switch).(--e The black boxes are defined with specific equipment " characteristics, such as delays, capacities, and other parameters. It C.; is in this manner that specific eSipment are simulated, (such as an AN/TYC-39 using step 2 software).L"I\ mW ISIMIANS does not emulate software when modeling a communications system. The software and hardware of a system is assumed to work as intended by the designer unless empirical data is avilable