Some potential additions (not sure if some of these go too far):
1. communication - This will complement any system and will tie into items below
2. people - roles of humans in different setups, either actively or passively (monitoring, maintenance, etc). Links to the outside for the system and general communications.
3. physical security - items like making sure walls go to the ceiling versus drop ceilings that can be gotten around by going over the wall (which is more of a concern lately). Physical barriers (landscaped barriers), positioning of windows on first floor, automatic door close situations.
4. How does access control tie into a fire type condition (don't want to trap people in a burning building).