STPA is a hazard analysis methodology for socio-technologic systems based on systems thinking with modeling of accident causation. STPA, a relatively new methodology centered on systems theory rather than reliability, is used to depict hazardous scenarios and the context that produces the scenario. By knowing the conditions for creating a possible hazardous scenario, measures can be created to eliminate, reduce, and control the scenarios in system design, development, manufacturing, and operations. STPA has achieved a reputation for identification of more casual factors and hazardous scenarios than traditional methods, particularly those related to software, system design, and human behaviors. For a more detailed description on STPA or publications on the methodology refer to the following resources. Book by Nancy G. Leveson introducing STAMP/STPA (note free download link in the lower left corner). https://mitpress.mit.edu/books/engineering-safer-world The STPA Handbook by Nancy G. Leveson and John P. Thomas published in March 2018. http://psas.scripts.mit.edu/home/get_file.php?name=STPA_handbook.pdf 10.STPA
Systems-Theoretic Process Analysis
The RM Studio – STPA tool provides users with the necessary features, functions and reporting to properly complete the STPA: