diff --git a/production_scheduling.md b/production_scheduling.md
index 4af8cc1..e42eae2 100644
--- a/production_scheduling.md
+++ b/production_scheduling.md
@@ -52,4 +52,26 @@ Iterate through each calendar day
 
 snap-shot STKB
 snap-shot BOLH
-snap-shot SOFT
\ No newline at end of file
+snap-shot SOFT
+
+
+some notes
+-----------------
+
+* shift schedules
+* parallel resources
+* setup time
+* efficiencies
+* scrap rates
+* blends
+* known 'A' item volumes planned regardless of demand
+* visibility window for incomming orders
+* grouping items to reduce change-overs
+* initial start-up: merge with current machine schedule
+* limit start date to child item availability
+* procurement mix
+* purchase lag
+* transfer lag
+* order priority
+* inventory minimums
+* tool availability
\ No newline at end of file