Mike DeWalt Completes DO-178B Audit of SCADE/KCG

Paves the Way for Multiple FAA DO-178B Level A Certifications in North America

MOUNTAIN VIEW, CA — September 30, 2005

Esterel Technologies, a leading worldwide supplier of model based-design, validation, and verification tools for the development of highreliability embedded software applications, today announced that Mike DeWalt, a globally recognized Consultant Designated Engineering Representative (DER) appointed by the Federal Aviation Administration (FAA) and employed by Certification Services, Inc. (CSI), has completed his audit of Esterel’s SCADE™/KCG qualified C code generator.

“This is excellent news for current and prospective users of SCADE Suite™ and our KCG qualified Ccode generator,” states Chip Downing, CEO of Esterel Technologies, Inc. “The completion of this critical audit lays a solid foundation for our expanding North American customer base to complete their FAA and Transport Canada DO-178B Level A certifications in the coming months.”

DeWalt’s review, conducted at Esterel’s Engineering facility in Toulouse, France, led to 17 actions items. “My review resulted in three categories of action items: (a) process improvements, (b) additional documentation of processes and checklists, and (c) additional testing of Tcl scripts used in the SCADE/KCG product,” notes DeWalt. “When the action items from my review are properly addressed, the SCADE/KCG product will, in my judgment, meet the FAA-recommended criteria and practices for a DO-178B Level A development tool for developing C source code.” Esterel plans to close all action items for the SCADE 5.1 release in early 2006.

SCADE, a design environment for safety-critical embedded software applications, provides graphical specification capture and simulation, along with the capability to check safety properties at the model level. The SCADE/KCG qualified code generator meets some of the world’s highest safety standards, including RTCA/DO-178B and IEC 61508, enabling the rapid deployment of SCADE-generated designs in quality-critical and safety-critical products worldwide.

Mike DeWalt’s complete SCADE/KCG DO-178B audit report is available free of charge to all existing KCG DO-178B Qualification Kit customers.

About Esterel Technologies

Esterel Technologies products and services solve the problems of high-reliability embedded design creation, validation, and verification, with complete tool suites supported by the power of abstraction and synchronous languages. Esterel Technologies’ tools create unambiguous specifications that produce correct-by-construction, automated implementations in software and/or hardware. Today, SCADE Suite™ is the standard for the creation of RTCA DO-178B and EUROCAE ED-12B safetycritical embedded software in the civilian avionics industry; and SCADE Drive™ is the emerging standard for the creation of critical-embedded software in the automotive industry. Esterel Studio™ enables embedded hardware designers to create a golden specification model that can be automatically implemented in RTL or C.

Esterel Technologies is a privately held company with headquarters in Mountain View, California, USA, and Elancourt, France, with sales offices in Germany, the United Kingdom, and China. For additional information, visit the Esterel Technologies website at: www.Esterel-Technologies.com

About Certification Services, Inc. (CSI)

Based near Seattle, Washington, USA, Certification Services, Inc., is a consulting firm devoted to regulatory approval of digital equipment used in aviation. CSI provides FAA Designees and projectmanagement support for all aspects of safety assessment, hardware, software, and complex logic devices used in airborne and ground-based aviation systems. CSI also conducts training courses in aircraft-level certification practices, safety assessment, software assurance, and assurance of complex logic devices. Mike DeWalt, Chief Scientist for Aviation Systems at CSI, is a former FAA National Resource Specialist for Avionics Software. For additional information, visit the CSI website at www.certification.com

Press Contacts:

Europe

Gundel Hahn, Gundel Hahn Medienservice

Phone: +49 (0) 89 123 922 04

Email: Gundel.Hahn@esterel-technologies.com

North America

Chip Downing, Esterel Technologies

Phone: +1 650-641-1707

Email: chip.downing@esterel-technologies.com

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