Traceability Analysis Helps Rockwell Collins Achieve DO-178B Certification

  Traceability Analysis Helps Rockwell Collins Achieve DO-178B Certification

   AdaCore source-to-object code analysis used in Level A certification of
                   avionics Integrated Display System (IDS)

Business Wire

BOSTON -- December 04, 2012

ACM SIGAda HILT Conference--AdaCore today announced the successful usage of
its Code Traceability Analysis for DO-178B by Rockwell Collins in the
certification of the Integrated Display System (IDS) for a large,
next-generation, commercial aircraft. The Traceability Analysis package is
part of the evidence needed to satisfy the DO-178B objectives for structural
code coverage at Level A, the highest (most stringent) level for avionics
software safety.

The IDS, featuring Rockwell Collins’ EFIS/EICAS Interface Unit (EIU-7001),
includes many of the advanced features found on the Boeing 787, such as an
electronic checklist with cursor control panel, navigation performance scales
and vertical situation displays. This critical system is Level A and was
developed in Ada using AdaCore’s GNAT Pro High-Integrity Edition for DO-178B,
targeted to PowerPC-ELF and using the Zero Footprint (ZFP) run-time library.

Certification at Level A is a major effort, involving a variety of software
life cycle processes. One of the verification process activities entails
demonstration of complete coverage of the source code through
requirements-based tests. If any object code is not traceable to the source
code (for example, if a high-level source construct is compiled into complex
object code involving conditional instructions) then DO-178B specifies the
following activity: ‘additional verification should be performed on the object
code to establish the correctness of such generated code sequences’. AdaCore
has developed an infrastructure and methodology to perform this activity; the
product of this activity is a source-to-object Code Traceability Analysis.

AdaCore’s approach has been successfully used in the past, saving customers
time and effort in conducting DO-178B certification. In light of this
successful previous experience, Rockwell selected AdaCore to conduct an
analogous traceability analysis for this next generation IDS Program. Rockwell
has now successfully completed the certification of its IDS, with AdaCore’s
Traceability Study serving as part of the full certification evidence.

“The traceability analysis that is needed to meet the structural code coverage
objectives requires a detailed knowledge of both the source language semantics
and the generated object code,” said Robert Dewar, AdaCore President and CEO.
“With our expertise in the Ada language and compiler technology, AdaCore was
uniquely qualified to perform this analysis both accurately and efficiently.
This allowed Rockwell Collins engineers to devote their energies to
certification activities directly related to their actual application.”

Pricing and Availability

AdaCore’s Code Traceability Analysis for DO-178B is adaptable based on the
customer’s coding standard and specific target configuration. Please contact
AdaCore ( for information on pricing and supported

About AdaCore

Founded in 1994, AdaCore is the leading provider of commercial software
solutions for Ada, a state-of-the-art programming language designed for large,
long-lived applications where safety, security, and reliability are critical.
AdaCore's flagship product is the GNAT Pro development environment, which
comes with expert on-line support and is available on more platforms than any
other Ada technology. AdaCore has an extensive world-wide customer base; see for further information.

Ada and GNAT Pro see a growing usage in high-integrity and safety-certified
applications, including commercial aircraft avionics, military systems, air
traffic management/control, railroad systems, and medical devices, and in
security-sensitive domains, such as financial services. The SPARK Pro toolset,
available from AdaCore, is especially useful in such contexts.

AdaCore has North American headquarters in New York and European headquarters
in Paris.


Jamie Ayre
Rainier Communications (for AdaCore)
Jessie Glockner, 508-475-0025 x140
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