diff --git a/language/src/main/java/de/monticore/lang/sysmlv2/cocos/ParentComponentInputConnectionDirectionCoCo.java b/language/src/main/java/de/monticore/lang/sysmlv2/cocos/ParentComponentInputConnectionDirectionCoCo.java
index a05e694c..c5df6554 100644
--- a/language/src/main/java/de/monticore/lang/sysmlv2/cocos/ParentComponentInputConnectionDirectionCoCo.java
+++ b/language/src/main/java/de/monticore/lang/sysmlv2/cocos/ParentComponentInputConnectionDirectionCoCo.java
@@ -1,9 +1,6 @@
 /* (c) https://github.com/MontiCore/monticore */
 package de.monticore.lang.sysmlv2.cocos;
 
-import de.monticore.lang.sysmlbasis._ast.ASTModifier;
-import de.monticore.lang.sysmlbasis._ast.ASTSysMLTyping;
-import de.monticore.lang.sysmlparts._ast.ASTAttributeUsage;
 import de.monticore.lang.sysmlparts._ast.ASTConnectionUsage;
 import de.monticore.lang.sysmlparts._cocos.SysMLPartsASTConnectionUsageCoCo;
 import de.monticore.lang.sysmlparts._symboltable.ISysMLPartsScope;
@@ -180,41 +177,15 @@ protected PortUsageSymbol resolvePortOfSubPart(ISysMLPartsScope scope,
     return null;
   }
 
-  /** Extract modifiers from PortUsageSymbol */
-  protected ASTModifier getModifiersFromPortUsageSymbol(PortUsageSymbol symbol) {
-    ASTAttributeUsage portAttributeUsageAST = (ASTAttributeUsage)
-        symbol.getAstNode()
-            .getPortDefs()
-            .get(0)
-            .getSysMLElementList()
-            .get(0);
-    return portAttributeUsageAST.getModifier();
-  }
-
   protected boolean portIsInput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    boolean portIsInAndNotConjugated = mods.isIn() && !portIsConjugated(symbol);
-    boolean portIsOutAndConjugated = mods.isOut() && portIsConjugated(symbol);
-    return (portIsInAndNotConjugated || portIsOutAndConjugated);
+    return !symbol.getInputAttributes().isEmpty();
   }
 
   protected boolean portIsOutput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    boolean portIsOutAndNotConjugated = mods.isOut() && !portIsConjugated(symbol);
-    boolean portIsInAndConjugated = mods.isIn() && portIsConjugated(symbol);
-    return (portIsOutAndNotConjugated || portIsInAndConjugated);
+    return !symbol.getOutputAttributes().isEmpty();
   }
 
   protected boolean portIsInOutput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    return mods.isInout();
-  }
-
-  protected boolean portIsConjugated(PortUsageSymbol symbol) {
-    return
-        ((ASTSysMLTyping) symbol
-            .getAstNode()
-            .getSpecialization(0))
-            .isConjugated();
+    return portIsInput(symbol) && portIsOutput(symbol);
   }
 }
diff --git a/language/src/main/java/de/monticore/lang/sysmlv2/cocos/SubcomponentOutputConnectionDirectionCoCo.java b/language/src/main/java/de/monticore/lang/sysmlv2/cocos/SubcomponentOutputConnectionDirectionCoCo.java
index 9832bbaf..a1e65483 100644
--- a/language/src/main/java/de/monticore/lang/sysmlv2/cocos/SubcomponentOutputConnectionDirectionCoCo.java
+++ b/language/src/main/java/de/monticore/lang/sysmlv2/cocos/SubcomponentOutputConnectionDirectionCoCo.java
@@ -1,10 +1,7 @@
 /* (c) https://github.com/MontiCore/monticore */
 package de.monticore.lang.sysmlv2.cocos;
 
-import de.monticore.lang.sysmlbasis._ast.ASTModifier;
 import de.monticore.lang.sysmlbasis._ast.ASTEndpoint;
-import de.monticore.lang.sysmlbasis._ast.ASTSysMLTyping;
-import de.monticore.lang.sysmlparts._ast.ASTAttributeUsage;
 import de.monticore.lang.sysmlparts._ast.ASTConnectionUsage;
 import de.monticore.lang.sysmlparts._cocos.SysMLPartsASTConnectionUsageCoCo;
 import de.monticore.lang.sysmlparts._symboltable.*;
@@ -167,41 +164,15 @@ protected PortUsageSymbol resolvePortOfSubPart(ISysMLPartsScope scope,
     return null;
   }
 
-  /** Extract modifiers from PortUsageSymbol */
-  protected ASTModifier getModifiersFromPortUsageSymbol(PortUsageSymbol symbol) {
-    ASTAttributeUsage portAttributeUsageAST = (ASTAttributeUsage)
-        symbol.getAstNode()
-            .getPortDefs()
-            .get(0)
-            .getSysMLElementList()
-            .get(0);
-    return portAttributeUsageAST.getModifier();
-  }
-
   protected boolean portIsInput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    boolean portIsInAndNotConjugated = mods.isIn() && !portIsConjugated(symbol);
-    boolean portIsOutAndConjugated = mods.isOut() && portIsConjugated(symbol);
-    return (portIsInAndNotConjugated || portIsOutAndConjugated);
+    return !symbol.getInputAttributes().isEmpty();
   }
 
   protected boolean portIsOutput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    boolean portIsOutAndNotConjugated = mods.isOut() && !portIsConjugated(symbol);
-    boolean portIsInAndConjugated = mods.isIn() && portIsConjugated(symbol);
-    return (portIsOutAndNotConjugated || portIsInAndConjugated);
+    return !symbol.getOutputAttributes().isEmpty();
   }
 
   protected boolean portIsInOutput(PortUsageSymbol symbol) {
-    ASTModifier mods = getModifiersFromPortUsageSymbol(symbol);
-    return mods.isInout();
-  }
-
-  protected boolean portIsConjugated(PortUsageSymbol symbol) {
-    return
-        ((ASTSysMLTyping) symbol
-        .getAstNode()
-        .getSpecialization(0))
-        .isConjugated();
+    return portIsInput(symbol) && portIsOutput(symbol);
   }
 }
diff --git a/language/src/test/java/cocos/ParentComponentInputConnectionDirectionCoCoTest.java b/language/src/test/java/cocos/ParentComponentInputConnectionDirectionCoCoTest.java
index 11aedaa9..11295083 100644
--- a/language/src/test/java/cocos/ParentComponentInputConnectionDirectionCoCoTest.java
+++ b/language/src/test/java/cocos/ParentComponentInputConnectionDirectionCoCoTest.java
@@ -181,6 +181,7 @@ private ISysMLv2ArtifactScope createSt(ASTSysMLModel ast) {
       var tool = new SysMLv2Tool();
       var scope = tool.createSymbolTable(ast);
       tool.completeSymbolTable(ast);
+      tool.finalizeSymbolTable(ast);
       return scope;
     }
 
diff --git a/language/src/test/java/cocos/SubcomponentOutputConnectionDirectionCoCoTest.java b/language/src/test/java/cocos/SubcomponentOutputConnectionDirectionCoCoTest.java
index 21d7d903..48b57c73 100644
--- a/language/src/test/java/cocos/SubcomponentOutputConnectionDirectionCoCoTest.java
+++ b/language/src/test/java/cocos/SubcomponentOutputConnectionDirectionCoCoTest.java
@@ -180,6 +180,7 @@ private ISysMLv2ArtifactScope createSt(ASTSysMLModel ast) {
       var tool = new SysMLv2Tool();
       var scope = tool.createSymbolTable(ast);
       tool.completeSymbolTable(ast);
+      tool.finalizeSymbolTable(ast);
       return scope;
     }