First draft normal operation scenarios; not yet synced with events.

specs/Makefile

@@ -15,6 +15,7 @@ validate_lando:
 	lando validate instrumentation.lando
 	lando validate project_requirements.lando
 	lando validate requirements.lando
+	lando validate scenarios.lando
 	lando validate test_scenarios.lando
 	lando validate tool_scenarios.lando
 

specs/scenarios.lando

@@ -0,0 +1,29 @@
+// Scenarios are sequences of events.  Scenarios document normal and
+// abnormal traces of system execution.
+
+// Normal scenarios describe the normal behavior of the system when
+// it is not in maintenance or self-test mode.
+
+scenarios RTS Scenarios
+
+Normal Behavior 1 - Stable Normal State
+The system is in the normal operating mode across all instrumentation
+units, no unit is in test mode, and no unit is in maintenance mode, a
+threshold setpoint v_p has been set for pressure, and a threshold
+setpoint v_t has been set for temperature.
+
+Normal Behavior 2 - Event Control
+The system is in a stable normal state and responds to a new event.
+
+Normal Behavior 3 - Sense Compute Actuate
+The system is in a stable normal state and receives input from the
+user and reads data from its sensors and, reacts to user input, and if
+necessary, actuates an actuator.
+
+Normal Behavior 4 - Test Instrumentation
+Test system behavior across all possible combinations of modes,
+commands, pressure values, temperature values, and failure conditions.
+
+Normal Behavior 5 - Test Voting
+Test system voting behavior across all possible combinations of vote
+inputs.