diff --git a/content/notes/25-cost-benefit-analysis.md b/content/notes/25-cost-benefit-analysis.md
index f9b840fb1..5cdd00f7c 100644
--- a/content/notes/25-cost-benefit-analysis.md
+++ b/content/notes/25-cost-benefit-analysis.md
@@ -31,9 +31,16 @@ tags:
 	- strategic alignment? overall priority?
 	- stakeholder support? Champion?
 	- e.g., (otago uni)
-		- document management system
-		- 
+		- document management system - legislated
+		- student management system - mission critical
+		- hard to share multimedia (otago capture) - problem
+		- online teaching - opportunity
 - can we bulid it (techinical)
+	- complecity (higher complexity -> higher risk)
+	- familiarity and expertise (low familiarity -> higher risk)
+	- size (larger -> higher risk)
+	- compatitibilty (with existing systems; less -> higher risk)
+	- e.g., IBM police 90's fil
 - will it be worth it (economic)
 - includes considerations of risk and uncertainty
 - may revisit due to uncertainty