An algorithm for the First Order Reliability Method (FORM)
1. Identify the distributions of your basic random variables X (typically marginal PDFs or
CDFs, as well as correlations or joint distributions)
2. Decide which method is appropriate for transforming your basic random variables X into
standard normal random variables U (using one of the four cases discussed).
3. Use the Hasofer-Lind Rackwitz-Feissler algorithm to find the design point u*.