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DDC-I announces availability of world's first products supporting ARINC Specification 653, Part 4 Subset

DDC-I, a leading supplier of software and professional services for mission- and safety-critical applications, today announced the availability of the world's first commercial real-time operating system (RTOS) products supporting the ARINC Specification 653, Part 4 strict subset. The Part 4 subset has been specifically defined for systems that do not require the size, complexity and features of the full specification, such as the majority of the Line Replaceable Units (LRU) on next generation aircraft. DDC-I offers the interfaces and scheduling model of Part 4 with two new variants of the field proven Deos™ RTOS, which are available today.

Deos 653p4™ provides an enhanced hybrid solution that offers all the value-added features of Deos (rate monotonic slack scheduling, interrupt driven response, binary reuse, IO middleware, etc.) in addition to support for the Part 4 services and scheduling model. Deos 653p4-Solo™ provides only the ARINC Specification 653 Part 4 services, at a very high value point.

"These two new products further our mission of providing best-in-class COTS RTOS solutions for the safety-critical, DO-178B certifiable, avionics software market," said Bob Morris, president and CEO of DDC-I. "Customers who have avoided leveraging the full ARINC 653 Part 1 and Part 2 subsections, due to the complexity and high cost of the commercial offerings, now will have the opportunity to leverage the benefits of this powerful new capability. These two new products deliver standards conformance at an exceptional value point targeted at the needs of avionics LRU providers."

"The ARINC standard enhances application portability and improves reuse for safety-critical software development and certification," added Vance Hilderman, president of Atego/HighRely, and the principal author of "Avionics Certification, A Complete Guide to DO-178 (Software) and DO-254 (Hardware)". "Deos653p4 users targeting these products will benefit from the streamlined ARINC 653 Part 4 subset when developing avionics software for the myriad of devices that can benefit from the simplified ARINC 653 Part 4 programming model."

ARINC Specification 653 defines an application/executive interface between an avionics computer's operating system and application software that simplifies software design, enhances portability and reuse, and reduces the cost of avionics software certification. ARINC 653 Part 4 utilizes a simplified execution model with a time-and space-partitioned software environment that allows multiple partitions with only one or two processes per partition. The lightweight specification maintains compatibility with ARINC 653 Part 1 while simplifying software design and dynamic behavior, thereby reducing the OS footprint, overhead, complexity, with the ability to deliver strong real-time performance.

ARINC Specification 653 Part 4 is defined by the AEEC Application/Executive (APEX) Subcommittee, which is co-chaired by representatives from Airbus and Boeing, and includes representation by Dassault, Embraer, GE Aviation, Honeywell, Rockwell Collins, Thales and other industry leaders. AEEC is the Airlines Electronic Engineering Committee, the body responsible for ARINC Standards.

Deos is a DO-178B Level A certifiable embedded RTOS that has been used in hundreds of safety critical avionics applications on commercial and military aircraft. The time and space partitioned RTOS features deterministic real-time response and employs patented "slack scheduling" to deliver higher CPU utilization than any other certifiable safety-critical COTS RTOS. Built from the ground up for safety-critical applications, Deos is the only certifiable time and space partitioned COTS RTOS that has been created using RTCA DO-178B, Level A processes from the very first day of its product development. It also provides the easiest, lowest cost path of any COTS RTOS to DO-178B Level A certification, the highest level of safety criticality.

Press release issued by DDC-I, Inc. on October 17, 2011


 Contact details from our directory:
DDC-I, Inc. Onboard Computers


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Flight and Data Management

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