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system interoperability and will be required in UA systems where applicable. Adoption of the last two,
STANAGs 3377 and 4250, is not mandatory but is encouraged.
UAS ROADMAP 2005
APPENDIX E – INTEROPERABILITY STANDARDS
Page E-11
STANAG 3809 (Digital Terrain Elevation Data)
STANAG 3809 provides the format for digital terrain elevation data (DTED) geographic information data
exchange. This data is used for a number of different applications, including mission planning, mapping,
and ISR sensor visibility calculations. All exchange of DTED data should be accomplished using
STANAG 3809.
STANAG 5500 (Message Text Formatting System)
The NATO message text formatting system (ADatP-3) provides the format for digital messages usable by
ADP systems. A number of different message types are defined and encoded so that recipient systems can
interpret each.
STANAG 7074 (Digital Geographic Information Exchange Standard)
Digital geographic information exchange standard (DIGEST Version 1.2a) is the standard used to define
all types of geographic data. This format is compatible with STANAG 4545, and some of the extensions
defined in STANAG 7074 are used by STANAG 4545 to incorporate precision geographic information.
STANAG 3377 (Air Reconnaissance Intelligence Report Forms)
Air Reconnaissance Intelligence Report Forms are included in STANAG 3377. These forms are used to
report the results of imagery interpretation and include forms for rapid exploitation, detailed exploitation,
and radar analysis. This standard provides both the free text and automated data processing forms of each
of the forms.
Other Data Formats
Digital feature analysis data (DFAD) is data that describes the surface features of the terrain. This allows
a more complete analysis of terrain than is available through the use of elevation data alone. Feature
analysis includes both the natural surface and man-made features. The World Geodetic System - 84
(WGS-84), contained in MIL-STD-2401, provides the reference ellipsoid for use in elevation
calculations. In some cases, the ellipsoid is modified with variations of the gravitational vector through
the designation of a reference geoid as well. In either case, developers should take care to ensure that
metadata specifications are properly followed with respect to using the proper elevation reference.
IMINT Aircraft Collections Requirement Message (ACRM)
This standard for ACRMs is designed to provide a common data structure and format to facilitate the
automatic ingestion of IMINT collection tasking from theater collection management tool(s) to mission
and/or sensor planners. The ACRM standard will provide community-acceptable field names, data
structures, and format(s). Using the standard, developers can create compatible profiles for their
individual applications and systems to automatically ingest collection requirements and tasking
information.
The standard will provide a menu of all the potential fields necessary for various airborne IMINT
collections. Not all fields will necessarily be used in any one ACRM application. Each developer can
include those fields necessary for their system/platform in their particular profile. A single standard for
ACRMs will:
Eliminate the creation of multiple one-to-one unique interfaces between collection management tools
and mission and sensor planners
Facilitate interoperability by enabling a standards based approach to collection management
Streamline the tasking process so that users (who have an application for automatic ingestion
developed from the standard) do not have to re-type collection tasking information into their sensor
and/or mission planning systems
UAS ROADMAP 2005
APPENDIX E – INTEROPERABILITY STANDARDS
Page E-12
Information Security
Information Assurance is defined as measures taken to protect and defend our information and
information systems to ensure confidentiality, integrity, availability, and accountability, extended to
restoration with protect, detect, monitor, and react capabilities.
Secure Web Browsing
This service identifies the protocol used to provide communications privacy over a network. The protocol
allows applications to communicate in a way designed to prevent eavesdropping, tampering, or message
forgery in e-mail packages. World Wide Web (WWW) services provide abilities for navigation and data
transport across the Internet. The protocol encapsulates various higher-level protocols and is application
independent.
Web browsers and web servers must first attempt to use transport layer security (TLS), then use secure
socket layer (SSL) 3.0 if TLS is not supported. It is expected that SSL 3.0 will not be supported in the
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