Many machine builders mistakenly take the view that the risk graph
in the standard for safety-related parts of control systems, EN ISO 13849-1 (which replaced EN 954-1 at the end of 2011) is a 'risk assessment' - but it is not.
Among the topics are concealed investment strategy threats, using social networks for on-line credit card fraud analysis, the role of information security in intelligence, an evidential risk graph
model for determining safety integrity level, community networks for information sharing, and neural network rule extraction and decision tables for predicting software faults.
These guidelines are covered in DIN EN 954-1, which uses a risk graph
to aid in the process of risk assessment.
Both are completely accessible from a Lotus 123 spreadsheet, one as the @ RISK add-in to Lotus 123, and the other as a separate program, called @ RISK Graph
(used for processing and displaying results), which is activated from the @ RISK add-in menu.
Second, we determined that side-by-side risk graphs
often confuse people.