diff --git a/component_failure_modes_definition/component_failure_modes_definition.tex b/component_failure_modes_definition/component_failure_modes_definition.tex
index de01193..a5186a8 100644
--- a/component_failure_modes_definition/component_failure_modes_definition.tex
+++ b/component_failure_modes_definition/component_failure_modes_definition.tex
@@ -97,6 +97,8 @@ Functional Group & A collection of sub-systems and/or \\
 Failure Mode     & The collection of all failure \\
 Group            & modes from all the members of a \\
                  & functional group \\ \hline
+Derived      & A failure mode determined from the analysis \\
+Failure mode & of a `Failure Mode Group' \\ \hline
 Base Component & Any bought in component, which \\
                & hopefully has a known set of failure modes  \\    \hline  
  \hline
diff --git a/component_failure_modes_definition/fmmd_uml.dia b/component_failure_modes_definition/fmmd_uml.dia
index 50fda28..1b7a10f 100644
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diff --git a/component_failure_modes_definition/fmmd_uml.jpg b/component_failure_modes_definition/fmmd_uml.jpg
index fcf80f9..b953b0d 100644
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