![© TotalEnergies Modules of the Simulation package of the GRIF software suite : Petri, Petro, BStoK, Flex](https://grif.totalenergies.com/sites/g/files/wompnd2446/f/styles/total_585x294/public/atoms/image/edito_xxl_simulation_package_modules_3.png?itok=XtDG_LeZ)
The Simulation package in the GRIF software suite offers four complementary modules to support your reliability analyses for production and safety systems
- Petri: modeling based on "Stochastic Petri nets with Predicates".
- BStok: creating stochastic block diagrams using a Petri net library.
- Petro: modeling multi-flow systems , mainly used for oil and gas operations.
- Flex: building multi-flow diagrams with the option to create your own Petri net prototypes.