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standards/standards.tex

@@ -47,8 +47,19 @@ and verification to standard - manufacturing overwatch / supervision
 word on tip of tounge -
 
 \section{ Safety Goals and safety Requirements}
+Safety goals can be seen as general principles of safety.
+Safety requirements, are speciific to the operatng conditions and environment
+that the equipement is used in.
+Safety goals can be considered a set of aspirations
+to be applied to any system.
+
+For every Safety requirement $S_{req}$ we should have a related safety goal
+$S_{goal}$ for the requirments to be meaningful.
+
+We can express this as 
+$$ \forall S_{req} \longrightarrow S_{goal}. $$
+
 
-$$ \forall S_{req} \longrightarrow S_{goal} $$
 \section{European or `EN' Standards}
 
 \subsection{Scope}