Copyright © 2009 Open Geospatial Consortium, Inc. 11
4 Conventions
4.1 Abbreviated terms
ACI Access Control Information
AI Authentication Information
AIM Aeronautical Information Management
CSW Catalog Service for the Web
DMZ Demilitarized Zone
EDA Event Driven Architecture
IP Internet Protocol
NAT Network Address Translation
OWS-6 Open Web Services, Phase 6
SAS Sensor Alert Service
SOS Sensor Alert Service
SI Security Information
SPS Sensor Planning Service
SWE Sensor Web Enablement
WNS Web Notification Service
XMPP Extensible Messaging and Presence Protocol
4.2 UML notation
Sequence diagrams that appear in this Engineering Report are presented using the Unified Modeling Language UML static structure diagram, as described in Subclause 5.2 of
[OGC 06-121r3].
4.3 Used parts of other documents
This document uses significant parts of document [OGC 06-121r3]. To reduce the need to refer to that document, this document copies some of those parts with small
modifications. To indicate those parts to readers of this document, the largely copied parts are shown with a light grey background 15.
12 Copyright © 2009 Open Geospatial Consortium, Inc.
5 Use case “Fire at the airport”
As it seems to be impossible to describe a standards based approaches for the implementation of these security frameworks in a general way, this Engineering Report
focuses on a particular use case in which it is possible to register sensors with a catalog and task the sensors to fulfill a certain function.
The use case for this ER is based on the use case ―fire at the airport‖ as described in the GPW thread of the OWS-6 initiative. But, it is slightly modified to accommodate the use
of CCSI sensors and to become specific to the SWE thread. Further on, the use case was extended by incorporating a unattended aerial vehicle UAV in order to elaborate
additional security relevant aspects.
5.1 Use Case Description
In the first responders dispatch office FRDO, administrators connect different CCSI sensors to different Sensor Web Services to allow monitoring of fire alerts at an airport.
After the sensor registration is completed, alert conditions are configured. In order to have fire alerts be reported to specific operators of the FRDO, the operator subscribes for
the pre-configured fire alert events. During runtime of the system, fire alerts will be published to the operators.
After an operator received a fire alert, they have the responsibility to dispatch fire fighters and gather further information, relevant to support the fire fighters. In this respect, the
operators can task UAVs to take pictures of the scene that can be obtained and used by the firefighters to understand the overall scene better. They can also obtain additional
sensor observations, for example of plume sensors, to get additional scene information. For this scenario, it is assumed that imagery produced by UAVs and the additional
observations are classified. Therefore, operators need a particular clearance to see that information.
5.2 Use Case Architecture