diff --git a/pom.xml b/pom.xml
index 95b20386f..105ce8776 100644
--- a/pom.xml
+++ b/pom.xml
@@ -118,6 +118,14 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 					</descriptorRefs>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>17</source>
+					<target>17</target>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 	<repositories>
@@ -129,8 +137,11 @@ http://maven.apache.org/maven-v4_0_0.xsd">
 	<properties>
 	    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<maven.compiler.source>1.8</maven.compiler.source>
-		<maven.compiler.target>1.8</maven.compiler.target>
+		<maven.compiler.source>17</maven.compiler.source>
+		<maven.compiler.target>17</maven.compiler.target>
+		<compilerArgs>
+			--enable-preview
+		</compilerArgs>
 		<tycho.version>0.23.0</tycho.version>
 		<mainClass>de.dhbwstuttgart.core.ConsoleInterface</mainClass>
 	</properties>
diff --git a/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
new file mode 100644
index 000000000..14896b830
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
@@ -0,0 +1,70 @@
+package de.dhbwstuttgart.target.generate;
+
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
+import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
+import de.dhbwstuttgart.syntaxtree.Field;
+import de.dhbwstuttgart.syntaxtree.Method;
+import de.dhbwstuttgart.syntaxtree.type.*;
+import de.dhbwstuttgart.target.tree.TargetClass;
+import de.dhbwstuttgart.target.tree.TargetConstructor;
+import de.dhbwstuttgart.target.tree.TargetField;
+import de.dhbwstuttgart.target.tree.TargetMethod;
+import de.dhbwstuttgart.target.tree.type.TargetRefType;
+import de.dhbwstuttgart.target.tree.type.TargetSuperWildcard;
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class ASTToTargetAST {
+
+    public TargetClass convert(ClassOrInterface input, Map<TypePlaceholder, TargetType> sigma){
+        List<TargetConstructor> targetConstructors = new ArrayList<>();
+        //TODO constructor conversion -> also reduce syntactic sugar
+        return new TargetClass(input.getModifiers(),input.getClassName().toString(), sigma.get(input.getSuperClass()),
+                input.getSuperInterfaces().stream().map(it -> sigma.get(it)).collect(Collectors.toList()),
+                targetConstructors,
+                input.getFieldDecl().stream().map(it -> convert(it, sigma)).collect(Collectors.toList()),
+                input.getMethods().stream().map(it -> convert(it, sigma)).collect(Collectors.toList()));
+    }
+
+    private TargetMethod convert(Method input, Map<TypePlaceholder, TargetType> sigma) {
+        return null;
+    }
+
+    private TargetField convert(Field input, Map<TypePlaceholder, TargetType> sigma) {
+        return null;
+    }
+
+    private TargetType convert(RefTypeOrTPHOrWildcardOrGeneric input, Map<TypePlaceholder, RefTypeOrTPHOrWildcardOrGeneric> sigma) {
+        return input.acceptTV(new TypeVisitor<>() {
+            @Override
+            public TargetType visit(RefType refType) {
+                return new TargetRefType(refType.getName().toString(),
+                        refType.getParaList().stream().map((it) -> convert(it, sigma)).collect(Collectors.toList()));
+            }
+
+            @Override
+            public TargetType visit(SuperWildcardType superWildcardType) {
+                return new TargetSuperWildcard(convert(superWildcardType.getInnerType(), sigma));
+            }
+
+            @Override
+            public TargetType visit(TypePlaceholder typePlaceholder) {
+                return convert(sigma.get(typePlaceholder), sigma);
+            }
+
+            @Override
+            public TargetType visit(ExtendsWildcardType extendsWildcardType) {
+                return null;
+            }
+
+            @Override
+            public TargetType visit(GenericRefType genericRefType) {
+                return null;
+            }
+        });
+    }
+}
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/MethodParameter.java b/src/main/java/de/dhbwstuttgart/target/tree/MethodParameter.java
new file mode 100644
index 000000000..4ae318281
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/MethodParameter.java
@@ -0,0 +1,6 @@
+package de.dhbwstuttgart.target.tree;
+
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+public record MethodParameter(TargetType type, String name) {
+}
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/TargetClass.java b/src/main/java/de/dhbwstuttgart/target/tree/TargetClass.java
new file mode 100644
index 000000000..a78da9d3a
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/TargetClass.java
@@ -0,0 +1,10 @@
+package de.dhbwstuttgart.target.tree;
+
+import de.dhbwstuttgart.target.tree.type.TargetRefType;
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.List;
+
+public record TargetClass(int modifiers, String qualifiedName, TargetType superType, List<TargetType> implementingInterfaces,
+                          List<TargetConstructor> constructors, List<TargetField> fields, List<TargetMethod> methods) {}
+
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/TargetConstructor.java b/src/main/java/de/dhbwstuttgart/target/tree/TargetConstructor.java
new file mode 100644
index 000000000..b93219ff5
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/TargetConstructor.java
@@ -0,0 +1,7 @@
+package de.dhbwstuttgart.target.tree;
+
+import java.util.List;
+
+public record TargetConstructor(List<MethodParameter> parameterTypes) {
+}
+
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/TargetField.java b/src/main/java/de/dhbwstuttgart/target/tree/TargetField.java
new file mode 100644
index 000000000..cbba1dec3
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/TargetField.java
@@ -0,0 +1,7 @@
+package de.dhbwstuttgart.target.tree;
+
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+public record TargetField(TargetType type, String name) {
+}
+
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/TargetMethod.java b/src/main/java/de/dhbwstuttgart/target/tree/TargetMethod.java
new file mode 100644
index 000000000..910c12a02
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/TargetMethod.java
@@ -0,0 +1,9 @@
+package de.dhbwstuttgart.target.tree;
+
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.List;
+
+public record TargetMethod(String name, List<MethodParameter> parameterTypes) {
+}
+
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetExtendsWildcard.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetExtendsWildcard.java
new file mode 100644
index 000000000..b30b85e9c
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetExtendsWildcard.java
@@ -0,0 +1,7 @@
+package de.dhbwstuttgart.target.tree.type;
+
+import java.util.List;
+
+public record TargetExtendsWildcard(TargetType innerType) implements TargetType{
+}
+
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java
new file mode 100644
index 000000000..c3e86f79e
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetFunNType.java
@@ -0,0 +1,6 @@
+package de.dhbwstuttgart.target.tree.type;
+
+import java.util.List;
+
+public record TargetFunNType(int N, List<TargetRefType> params) implements TargetType {
+}
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetRefType.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetRefType.java
new file mode 100644
index 000000000..1c27cd62c
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetRefType.java
@@ -0,0 +1,8 @@
+package de.dhbwstuttgart.target.tree.type;
+
+import de.dhbwstuttgart.target.tree.type.TargetType;
+
+import java.util.List;
+
+public record TargetRefType(String name, List<TargetType> params) implements TargetType {
+}
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSuperWildcard.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSuperWildcard.java
new file mode 100644
index 000000000..421102cba
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetSuperWildcard.java
@@ -0,0 +1,4 @@
+package de.dhbwstuttgart.target.tree.type;
+
+public record TargetSuperWildcard(TargetType innerType) implements TargetType {
+}
diff --git a/src/main/java/de/dhbwstuttgart/target/tree/type/TargetType.java b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetType.java
new file mode 100644
index 000000000..849df99c5
--- /dev/null
+++ b/src/main/java/de/dhbwstuttgart/target/tree/type/TargetType.java
@@ -0,0 +1,5 @@
+package de.dhbwstuttgart.target.tree.type;
+
+public sealed interface TargetType
+        permits TargetExtendsWildcard, TargetFunNType, TargetRefType, TargetSuperWildcard {
+}