diff --git a/bazel/rules/rules_score/trlc/config/score_requirements_model.rsl b/bazel/rules/rules_score/trlc/config/score_requirements_model.rsl
index 3a2d44ce..26a8e3ae 100644
--- a/bazel/rules/rules_score/trlc/config/score_requirements_model.rsl
+++ b/bazel/rules/rules_score/trlc/config/score_requirements_model.rsl
@@ -70,8 +70,16 @@ tuple FeatReqId {
     version Integer
 }
 
+type ControlMeasure "A design or operational measure that detects, prevents, or limits a failure mode." extends RequirementSafety {
+    mitigates    "Reference to the FailureMode or safety concern that this requirement mitigates."
+                 optional String
+}
+
+type AoU "Assumption of Use — a safety-relevant condition that a user must fulfil." extends ControlMeasure {
+}
+
 tuple CompReqSourceId {
-    item    [FeatReq, AssumedSystemReq]
+    item    [FeatReq, AssumedSystemReq, AoU]
     separator @
     version Integer
 }
@@ -154,11 +162,6 @@ type FailureMode "A potential failure of a system function, described using one
                    optional String
 }
 
-type ControlMeasure "A design or operational measure that detects, prevents, or limits a failure mode." extends RequirementSafety {
-    mitigates    "Reference to the FailureMode or safety concern that this requirement mitigates."
-                 optional String
-}
-
 type PreventiveMeasure "A measure that prevents a failure mode from occurring in the first place." {
 }
 
@@ -167,9 +170,6 @@ type Mitigation "A measure that reduces the severity or probability of a failure
                  optional String
 }
 
-type AoU "Assumption of Use — a safety-relevant condition that a user must fulfil." extends ControlMeasure {
-}
-
 tuple Measure {
     item    [ControlMeasure, PreventiveMeasure, Mitigation]
     separator @