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| Software Compartmentalization | |||||||||
| The solution to software reliability is compartmentalization. Our INTEGRITY real time operating system allows you to divide your software into bug-tight
compartments. If a bug occurs in one compartment it can't cause any trouble for software in any other compartment.
When a ship’s hull is breached and water pours in, watertight compartments are sealed so that only the compartment with the hole fills with water. The ship stays afloat. Analogous to the way that ships are divided into many watertight compartments, the INTEGRITY real time operating system allows you to divide your software into bug-tight compartments. If a bug occurs in one compartment, it cannot cause any trouble for software in any other compartment. Primitive RTOSes are like old ships, they have only one compartment. Any bug anywhere in your software can sink your whole system. There is no known design or testing methodology that can detect all bugs. With primitive RTOSes, the reliability of your electronic product is determined by your least reliable programmer on his worst day. This is what causes the maddening random glitches, crashes, and lock ups that plague all products that use other RTOSes. |
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| INTEGRITY-178B is the most reliable RTOS | |||||||||
| For products that require the highest reliability, only our
INTEGRITY-178B real time operating system will do. INTEGRITY-178B is our INTEGRITY real time operating system, plus a complete certification
package for the Federal Aviation Administration's highest level safety standard: DO-178B Level A. Conformance to this standard is mandatory for
any product whose failure could cause catastrophic failure of an aircraft. INTEGRITY-178B is the only high reliability RTOS whose documentation
and testing have been certified by the Federal Aviation Administration to meet this extraordinarily strict standard. INTEGRITY-178B is so reliable
that it has been adopted to run the primary control systems of dozens of aircraft including the Lockheed
Martin F-35 Joint Strike Fighter and the Traffic Collision Avoidance System for commercial aircraft.
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No one is more dedicated to maximizing the reliability of your electronic product than
Green Hills Software |
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Traditional real time operating systems from the 1980's (i.e., VxWorks, pSOS) can be crashed or subtly corrupted by the smallest inadvertent bug
in even the most insignificant part of your software.
