Green Hills Integrity is a real-time operating system and development toolchain commonly used in safety-critical systems such as avionics, automotive, and medical devices. It provides robust and secure software solutions for embedded systems that require high reliability and safety standards. The Integrity platform utilizes a partitioning scheme that allows multiple operating systems and applications to run on a single hardware platform while ensuring isolation and fault containment. Developers using this platform need to have specialized skills in real-time operating systems, partitioning, and safety-critical systems development.