diff --git a/system theoretic process analysis.md b/system theoretic process analysis.md
index 631ed4fcc..ec3c63982 100644
--- a/system theoretic process analysis.md	
+++ b/system theoretic process analysis.md	
@@ -5,6 +5,8 @@
 	- [[push]] [[stpa]]
 		- I love how STPA defers key steps to a later stage so they can be done systemically, once partial but complete initial modeling has taken place.
 	- 4 [[steps]]
+		- define the purpose of the analysis, including [[scope]], [[losses]], [[hazards]], 
+		- model the  control structurs
 	- step one
 		- start with the [[losses]], which involve something of value to stakeholders
 		- continue by defining the scope of the system