"If anything can go wrong, it will." Edward Murphy
The Safety Management System is a method to have safety taken into account by the whole community, not only its leading frame, in order to create a safety culture and reduce more efficiently the accidents/incidents figures.
Such a system is standard in civil aviation, and may partly explain their well-known and desserved high reputation: "The International Civil Aviation Organization (ICAO) requires SMS for the management of safety risk in air operations, maintenance, air traffic services and aerodromes. These requirements have been expanded to include flight training and design and production of aircraft." - FAA
A simplified version, especially designed for Hang Gliding and Paragliding, was unanimously adopted at the 2016 CIVL Plenary. To become fully efficient, it needs now to be implemented by the National Federations, which for many of them already have some similar system.
On the same subject: Pilot Safety in Gliding