Aerospace & Defense Technology - June 2021 - 22
Open System Software
for
Critical Applications
I
t's no secret that bringing a novel idea for a
safety-critical application from concept to
market can take a ton of time, dedication and
smarts, along with a whole lot of luck. Since
it's initially uncertain the idea will even work, a
proof of concept (PoC) seems a logical place to start,
focusing specifically on science while other considerations
like the rigorous traceability requirements
to comply with standards can be worried about far
down the road.
With budgets likely tight, and software considered
more a means to an end, using an open-source software
solution would be logical, even in the more
safety- and security-critical aerospace & defense industry.
Open-source software (OSS) can be downloaded
for free within minutes, and there's an internet
full of advice, support and guidance. Sounds like
a fool-proof plan, right?
Not So Fast
There are a few issues with OSS for critical applications,
some easier to remedy than others. Take the operating
system, for example. Standard Linux does not
have real-time capabilities. The development of RealTime
Linux in the form of the PREEMPT_RT patch represents
the Linux foundation's answer to those concerns,
but questions remain about its suitability for
hard real-time applications when alternatives may
need to be sought. In addition, it has yet to be refined
to a point where it can be merged into the mainline
Linux kernel.
Here's where things get even trickier. Many projects
must adhere to functional safety standards to achieve
compliance and civilian standards continue to gain momentum
in defense applications. For example, the defacto
standard for software development in commercial
avionics software and other airborne systems,
22
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Aerospace & Defense Technology - June 2021
Table of Contents for the Digital Edition of Aerospace & Defense Technology - June 2021
Aerospace & Defense Technology - June 2021 - Intro
Aerospace & Defense Technology - June 2021 - Sponsor
Aerospace & Defense Technology - June 2021 - Band1
Aerospace & Defense Technology - June 2021 - Band2
Aerospace & Defense Technology - June 2021 - Cov1
Aerospace & Defense Technology - June 2021 - Cov2
Aerospace & Defense Technology - June 2021 - 1
Aerospace & Defense Technology - June 2021 - 2
Aerospace & Defense Technology - June 2021 - 3
Aerospace & Defense Technology - June 2021 - 4
Aerospace & Defense Technology - June 2021 - 5
Aerospace & Defense Technology - June 2021 - 6
Aerospace & Defense Technology - June 2021 - 7
Aerospace & Defense Technology - June 2021 - 8
Aerospace & Defense Technology - June 2021 - 9
Aerospace & Defense Technology - June 2021 - 10
Aerospace & Defense Technology - June 2021 - 11
Aerospace & Defense Technology - June 2021 - 12
Aerospace & Defense Technology - June 2021 - 13
Aerospace & Defense Technology - June 2021 - 14
Aerospace & Defense Technology - June 2021 - 15
Aerospace & Defense Technology - June 2021 - 16
Aerospace & Defense Technology - June 2021 - 17
Aerospace & Defense Technology - June 2021 - 18
Aerospace & Defense Technology - June 2021 - 19
Aerospace & Defense Technology - June 2021 - 20
Aerospace & Defense Technology - June 2021 - 21
Aerospace & Defense Technology - June 2021 - 22
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Aerospace & Defense Technology - June 2021 - 24
Aerospace & Defense Technology - June 2021 - 25
Aerospace & Defense Technology - June 2021 - 26
Aerospace & Defense Technology - June 2021 - 27
Aerospace & Defense Technology - June 2021 - 28
Aerospace & Defense Technology - June 2021 - 29
Aerospace & Defense Technology - June 2021 - 30
Aerospace & Defense Technology - June 2021 - 31
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Aerospace & Defense Technology - June 2021 - 33
Aerospace & Defense Technology - June 2021 - 34
Aerospace & Defense Technology - June 2021 - 35
Aerospace & Defense Technology - June 2021 - 36
Aerospace & Defense Technology - June 2021 - 37
Aerospace & Defense Technology - June 2021 - 38
Aerospace & Defense Technology - June 2021 - 39
Aerospace & Defense Technology - June 2021 - 40
Aerospace & Defense Technology - June 2021 - 41
Aerospace & Defense Technology - June 2021 - 42
Aerospace & Defense Technology - June 2021 - 43
Aerospace & Defense Technology - June 2021 - 44
Aerospace & Defense Technology - June 2021 - 45
Aerospace & Defense Technology - June 2021 - 46
Aerospace & Defense Technology - June 2021 - 47
Aerospace & Defense Technology - June 2021 - 48
Aerospace & Defense Technology - June 2021 - Cov3
Aerospace & Defense Technology - June 2021 - Cov4
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