1. Smartship Briefing – October 2005 Crew Activity & Network Usage Example 1: Crew utilize applications, devices and servers to carry out maintenance and troubleshooting for specific shipboard equipment (job-based) Example 2: Sensors utilize applications, devices and servers to transmit data from specific shipboard equipment/components (service-based) sensor devices wireless access point ICAS workstations DS2 Server SKED & OMMS NG Servers Web Email Service s portion of ISNS Wired Network ADNS WLAN Wireless Extension wireless access point wireless access point ePMA IETM SLQ32 Racks equipment room SLQ32 DCC control room

2. Smartship Briefing – October 2005 The Infrastructure Model

3. Example: Maintenance Protocols Simulating Interactions of Crew, Equipment, Applications, Network Smartship Briefing – October 2005 Model Parameterizations Vary Crew and Network Utilization  Triggers: operational failure, sensor alert, planned maintenance diagnostics  Maintenance Application Aids: none (hardcopy), IETM, ePMA,...  Maintenance Device Aids: laptop, PDA, diagnostic devices, …  Reporting Application & Device Aids: SKED, ePMA, PDA, workstation, …  Servers for triggers, maintenance activity, maintenance reporting  Wired vs. Wireless sensor alert triggers troubleshooting action crew follows prescribed troubleshooting procedures to resolve failure crew reporting updates maintenance databases XML model defines detailed maintenance sequences

4. Smartship Briefing – October 2005 Supporting Historical Data Network utilization due to maintenance on generators is simulated using historical data from DDG class ship IDEICEquipment nomenclature Narrative summary Discover Open Close LengthShip force man hours Crew (est.) Part Issues GENERATION SYSTEMS ELECTRIC POWER 13510000MOTOR ACTEST/REPAIR GTG AUX PUMP MOTOR 11/10/1999 11/12/1999 12/06/1999 25 DAYS 4420 23510000 COUPLING, FLEXIB NR1 SSGTG COUPLING REPLACEMENT 05/23/2000 05/24/2000 24 HRS4051 33510000VALVE, CONTROL-TE 2 GTG TEMP REG VALVE FAILED 05/07/2000 09/22/2000 20 WKS9041 43510000NOZZLE, FUEL ASS NR2 GTG HIGH TEMPS THERMOCOU 07/08/1990 07/08/1999 24 HRS110 53510000 LOCAL CONTROL PA 2 LOCOP DAMAGED PWR SUPPLY 08/20/1999 09/03/1999 15 DAYS 1221 63510000 LOCAL CONTROL PA 3 GTG LOCAL FUEL TEMP CARD FAULT 04/05/2000 04/09/2000 01/10/2001 9 MOS 61081 Troubleshooting XML models simulate patterns of equipment failure / resolution. Model parameters vary triggers, application & device usage (wired & wireless), session elapsed times (crew & application), data sizes & flow.