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From Greg Trasuk <tras...@stratuscom.com>
Subject Re: [VOTE] drop JDK 5 compatibility
Date Tue, 08 Feb 2011 15:09:50 GMT
-1 (binding)

Although I'm a little hesitant to base decisions on one user, the
project that Michael notes in his signature (see below) would be a
pretty cool design win for Jini/River, it would require the Java
Real-Time system for obvious reasons, which is based on JDK1.5, and I'm
unaware of any powerful technical need for JDK1.6 at this time.  Also,
as many have pointed out, many other commercial app servers that might
be used as Jini clients are at JDK1.5 level.

Cheers,

Greg.


AF081- 028
----------
Objective: 

 Protype the exchange of a radar target report exchange between the GIG
and FAA System Wide Information Management(SWIM)network from the radar
detection to display at the FAA in less than 2.3 seconds 

Description: 
 Develop a real-time net-centric concept for sharing radar data in a
multi-level security environment between the Global Information Grid
(GIG) and the Federal Aviation Administration (FAA) System Wide
Information Management System (SWIM). Accurate, reliable, and timely
radar and Airborne Dependent Surveillance - Broadcast (ADS_B) position
data with very high integrity is critical to ensure aircraft collisions
are prevented. Timeliness and accuracy will be even more important to
maintaining safety in the FAA NextGen Air Transportation System being
put in place. The NextGen is being designed to handle three times as
much air traffic as today. Many more aircraft will be squeezed into the
same airspace as today. This means that blunder detection and resolution
loop times will be greatly reduced. Exchange of aircraft position data
must be reliable, timely and accurate with very high integrity to ensure
safety. This SBIR will strive to propose a way to guarantee that the
position information can enter the GIG and be received by SWIM and
processed for display with high confidence in less than 2.3 seconds from
detection to display. The quality of Service of both networks must be
defined to ensure that position data (radar and ADS-B) reliably reaches
its destination with high integrity. Background: Information must be
exchanged between aircraft, ground radars and ground ATM facilities to
ensure safe and efficient operation of the aviation system. These same
aircraft, radars and ATM facilities will be sending and receiving
position and flight change information between the GIG to the SWIM
network using internet protocol technology (IPV6). The GIG will be used
to share real-time position information (including radar and ADS-B
position data), issue and acknowledge controller instructions, update
flight plans, provide threat information, etc. Critical flight
information must pass both ways to ensure safety of flight and to allow
military aircraft to fly through civil airspace to accomplish their
missions. It is envisioned that control instructions and other
information will be transmitted from the FAA ATM facility over SWIM to
an appropriate gateway with the GIG then to the aircraft via data link
and vice versa. The airborne transmission path can be direct to a SWIM
gateway or via data link between the aircraft and military ground
station directly or by using military satellites, thence from the GIG to
the SWIM. Both GIG and SWIM are IP based and use XML, however they
cannot be used for flight critical information until the appropriate
quality of service for the information to be transferred is assured.
This exchange is necessary to enable information to be shared across
civil and military enterprises in the interest of air transportation
safety and the expeditious coordinated movement of air traffic
worldwide. The data to be exchanged varies from near real-time radar
data in Asterix over IP with strict latency requirements, (0.3 sec for
transmission and a total of 2.3 seconds from detection to display) to
flight plan information that can tolerate much longer latencies. A
priority system and a Quality of Service (QoS) scheme must be developed
to insure that time critical information such as radar, ADS-B and
control instructions are received without delay. The exchange of data
using the GIG and SWIM has the potential to minimize the unique avionics
necessary on board military aircraft to achieve access to civil airspace
worldwide. 
-- 
Greg Trasuk, President
StratusCom Manufacturing Systems Inc. - We use information technology to
solve business problems on your plant floor.
http://stratuscom.com


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