Home' RTCA Documents for Review : DO-230H FRAC Contents 227
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Cite open standards and specifications.
Require that any exceptions to these standards and specifications be identified and be individually
justified in system proposals.
Require the demonstration of hardware and software compatibility and multi-vendor
interoperability during proposal evaluations, preferably by setting up a laboratory environment of
airport systems and equipment where such testing can be conducted.
Choosing a Platform
As security systems have grown in technical sophistication and complexity, so have attempts to
management these capabilities in a unified manner. The current platforms of choice for integrating security
system elements are software-based: Video Management Systems (VMS) and Physical Systems
Information Management (PSIM) - and both have challenged airport operators to realize their potentials.
Situational Awareness is about an operator being fully aware of events and activities and their on -going
status. Situational Awareness can be achieved through countless ways, ranging from simple emails and
phone calls to multiple computers sharing one desk, up to a fully integrated desktop unit where all the
information is combined and filtered to give complete view of situations in real time.
Situation Management is about an operator knowing what to do next, or in case a task may be automated,
ensuring that the system knows what to do next, without delay and with complete consistency. Situation
Management is particularly important for scenarios where operators are experiencing heavy incident
workloads, or during periods of highly stressful incidents, or when operators are fairly new and
inexperienced or when there are changes to the standard operating procedures that would otherwise need to
be communicated out via training classes.
Part of Situation Management involves engaging other people and systems and this is typically done
through system integration and mobile devices. Just as a dynamic workflow engine guides the system and
operators through the tasks of prioritized incidents, it is also responsible for all escalations, so when for
example someone is asked a question, if the answer is not given within a specified time limit it will escalate
VMS software has long been the dominant application for integrating system elements where the inputs are
mainly access control system (ACS) readers and video cameras. As more types of devices have become
available, VMS providers have enhanced their software for the necessary functional integration to include
custom drivers, client software for driving video walls in SOCs, and software for analyzing appropriate
VMS providers have done this within their own organizations or have acquired firms with the needed
capabilities. Enhanced VMS software now approaches PSIM flexibility, at less cost, a trend that is expected
An airport which has installed a video surveillance system, and wants to enhance situational awareness and
SOC functionality by integrating new technologies, building on its VMS platform may be a less risky, and
less costly, decision then moving to a new PSIM platform which presents unknown challenges and risks.
Physical Security Information Management (PSIM) Systems
Developed for system-level integration, PSIM software is intended to interface disparate sensors and other
equipment into a unified, common operator presentation. PSIM attempts to provide the tools to manage
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