SIS-TECH’s SIL Solver V7 recently completed an extensive review of its calculation algorithms, architecture, and failure rate database. It has been re-certified as complying with national and international standards for determining the likelihood that a safety-critical system will fail to operate as required or cause an unnecessary process disruption. The failure rate database derives from a 20-year history of gathering data giving the user confidence that it reflects real-world conditions in the general process industry. SIL Solver V7 is a platform for retaining the safety requirements specification for safety instrumented systems and supports the lifecycle management of this critical information.