diff --git a/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaFieldWithMeta.java b/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaFieldWithMeta.java
index 03f105d12..1f1a5bb0b 100644
--- a/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaFieldWithMeta.java
+++ b/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaFieldWithMeta.java
@@ -1,5 +1,7 @@
 package com.regnosys.rosetta.generator.java.types;
 
+import static com.rosetta.model.lib.RuneNameConstants.*;
+
 import java.util.Collection;
 import java.util.List;
 
@@ -60,8 +62,8 @@ public List<JavaClass<?>> getInterfaces() {
 	@Override
 	public Collection<JavaPojoProperty> getOwnProperties() {
 		return List.of(
-				new JavaPojoProperty("value", "@data", "value", valueType, null, null, false),
-				new JavaPojoProperty("meta", "meta", "meta", typeUtil.META_FIELDS, null, null, false)
+				new JavaPojoProperty("value", DATA, "value", valueType, null, null, false),
+				new JavaPojoProperty("meta", META, "meta", typeUtil.META_FIELDS, null, null, false)
 			);
 	}	
 }
diff --git a/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaReferenceWithMeta.java b/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaReferenceWithMeta.java
index 30b4b31d5..581a44a78 100644
--- a/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaReferenceWithMeta.java
+++ b/rosetta-lang/src/main/java/com/regnosys/rosetta/generator/java/types/RJavaReferenceWithMeta.java
@@ -1,5 +1,7 @@
 package com.regnosys.rosetta.generator.java.types;
 
+import static com.rosetta.model.lib.RuneNameConstants.*;
+
 import java.util.Collection;
 import java.util.List;
 
@@ -62,9 +64,9 @@ public List<JavaClass<?>> getInterfaces() {
 	@Override
 	public Collection<JavaPojoProperty> getOwnProperties() {
 		return List.of(
-				new JavaPojoProperty("value", "@data", "value", valueType, null, null, false),
-				new JavaPojoProperty("globalReference", "@ref", "globalReference", javaTypeUtil.STRING, null, AttributeMeta.META, false),
-				new JavaPojoProperty("externalReference", "@ref:external", "externalReference", javaTypeUtil.STRING, null, AttributeMeta.META, false),
+				new JavaPojoProperty("value", DATA, "value", valueType, null, null, false),
+				new JavaPojoProperty("globalReference", REFERENCE, "globalReference", javaTypeUtil.STRING, null, AttributeMeta.META, false),
+				new JavaPojoProperty("externalReference", EXTERNAL_REFERENCE, "externalReference", javaTypeUtil.STRING, null, AttributeMeta.META, false),
 				new JavaPojoProperty("reference", null, "reference", javaTypeUtil.REFERENCE, null, null, false)
 			);
 	}
diff --git a/rosetta-runtime/src/main/java/com/rosetta/model/lib/RuneNameConstants.java b/rosetta-runtime/src/main/java/com/rosetta/model/lib/RuneNameConstants.java
new file mode 100644
index 000000000..0a3814204
--- /dev/null
+++ b/rosetta-runtime/src/main/java/com/rosetta/model/lib/RuneNameConstants.java
@@ -0,0 +1,15 @@
+package com.rosetta.model.lib;
+
+public class RuneNameConstants {
+	private RuneNameConstants() {}
+	
+	public static final String DATA = "@data";
+	public static final String REFERENCE = "@ref";
+	public static final String EXTERNAL_REFERENCE = "@ref:external";
+	public static final String SCOPED_REFERENCE = "@ref:scoped";
+	public static final String META = "meta";
+	public static final String SCHEME = "@scheme";
+	public static final String KEY = "@key";
+	public static final String EXTERNAL_KEY = "@key:external";
+	public static final String SCOPED_KEY = "@key:scoped";
+}
diff --git a/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaAndTemplateFields.java b/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaAndTemplateFields.java
index 4452ff888..70ddc6871 100644
--- a/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaAndTemplateFields.java
+++ b/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaAndTemplateFields.java
@@ -25,6 +25,7 @@
 import java.util.Objects;
 import java.util.stream.Collectors;
 
+import static com.rosetta.model.lib.RuneNameConstants.*;
 import static java.util.Optional.ofNullable;
 
 /**
@@ -140,7 +141,7 @@ protected MetaAndTemplateFieldsImpl(MetaAndTemplateFields.MetaAndTemplateFieldsB
 		
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("scheme")
+		@RuneAttribute(SCHEME)
 		public String getScheme() {
 			return scheme;
 		}
@@ -159,7 +160,7 @@ public String getLocation() {
 		
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public String getAddress() {
 			return address;
 		}
@@ -172,14 +173,14 @@ public String getTemplateGlobalReference() {
 		
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public String getGlobalKey() {
 			return globalKey;
 		}
 		
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public String getExternalKey() {
 			return externalKey;
 		}
@@ -191,7 +192,7 @@ public List<? extends Key> getKey() {
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public String getKeyScoped() {
             if (key == null || key.isEmpty()) {
                 return null;
@@ -286,7 +287,7 @@ public MetaAndTemplateFieldsBuilderImpl() {
 	
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("scheme")
+		@RuneAttribute(SCHEME)
 		public String getScheme() {
 			return scheme;
 		}
@@ -305,7 +306,7 @@ public String getLocation() {
 		
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public String getAddress() {
 			return address;
 		}
@@ -318,14 +319,14 @@ public String getTemplateGlobalReference() {
 		
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public String getGlobalKey() {
 			return globalKey;
 		}
 		
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public String getExternalKey() {
 			return externalKey;
 		}
@@ -349,7 +350,7 @@ public Key.KeyBuilder getOrCreateKey(int _index) {
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public String getKeyScoped() {
             if (key == null || key.isEmpty()) {
                 return null;
@@ -359,7 +360,7 @@ public String getKeyScoped() {
 		
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("scheme")
+		@RuneAttribute(SCHEME)
 		public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setScheme(String scheme) {
 			this.scheme = scheme==null?null:scheme;
 			return this;
@@ -378,7 +379,7 @@ public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setLocation(String loc
 		}
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setAddress(String address) {
 			this.address = address==null?null:address;
 			return this;
@@ -391,14 +392,14 @@ public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setTemplateGlobalRefer
 		}
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setGlobalKey(String globalKey) {
 			this.globalKey = globalKey==null?null:globalKey;
 			return this;
 		}
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setExternalKey(String externalKey) {
 			this.externalKey = externalKey==null?null:externalKey;
 			return this;
@@ -439,7 +440,7 @@ public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setKey(List<? extends
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public MetaAndTemplateFields.MetaAndTemplateFieldsBuilder setKeyScoped(String keyScoped) {
             this.key = new ArrayList<>();
             if (keyScoped!=null)  {
diff --git a/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaFields.java b/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaFields.java
index 36b316879..6d184e9aa 100644
--- a/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaFields.java
+++ b/rosetta-runtime/src/main/java/com/rosetta/model/metafields/MetaFields.java
@@ -1,6 +1,7 @@
 package com.rosetta.model.metafields;
 
 import static java.util.Optional.ofNullable;
+import static com.rosetta.model.lib.RuneNameConstants.*;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -135,7 +136,7 @@ protected MetaFieldsImpl(MetaFields.MetaFieldsBuilder builder) {
 		
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("@scheme")
+		@RuneAttribute(SCHEME)
 		public String getScheme() {
 			return scheme;
 		}
@@ -154,21 +155,21 @@ public String getLocation() {
 		
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public String getAddress() {
 			return address;
 		}
 		
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public String getGlobalKey() {
 			return globalKey;
 		}
 		
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public String getExternalKey() {
 			return externalKey;
 		}
@@ -181,7 +182,7 @@ public List<? extends Key> getKey() {
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public String getScopedKey() {
             if (key == null || key.isEmpty()) {
                 return null;
@@ -271,7 +272,7 @@ public MetaFieldsBuilderImpl() {
 	
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("@scheme")
+		@RuneAttribute(SCHEME)
 		public String getScheme() {
 			return scheme;
 		}
@@ -290,21 +291,21 @@ public String getLocation() {
 		
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public String getAddress() {
 			return address;
 		}
 		
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public String getGlobalKey() {
 			return globalKey;
 		}
 		
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public String getExternalKey() {
 			return externalKey;
 		}
@@ -317,7 +318,7 @@ public List<? extends Key.KeyBuilder> getKey() {
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public String getScopedKey() {
             if (key == null || key.isEmpty()) {
                 return null;
@@ -339,7 +340,7 @@ public Key.KeyBuilder getOrCreateKey(int _index) {
 		
 		@Override
 		@RosettaAttribute("scheme")
-		@RuneAttribute("@scheme")
+		@RuneAttribute(SCHEME)
 		public MetaFields.MetaFieldsBuilder setScheme(String scheme) {
 			this.scheme = scheme==null?null:scheme;
 			return this;
@@ -358,21 +359,21 @@ public MetaFields.MetaFieldsBuilder setLocation(String location) {
 		}
 		@Override
 		@RosettaAttribute("address")
-		@RuneAttribute("@ref:scoped")
+		@RuneAttribute(SCOPED_REFERENCE)
 		public MetaFields.MetaFieldsBuilder setAddress(String address) {
 			this.address = address==null?null:address;
 			return this;
 		}
 		@Override
 		@RosettaAttribute("globalKey")
-		@RuneAttribute("@key")
+		@RuneAttribute(KEY)
 		public MetaFields.MetaFieldsBuilder setGlobalKey(String globalKey) {
 			this.globalKey = globalKey==null?null:globalKey;
 			return this;
 		}
 		@Override
 		@RosettaAttribute("externalKey")
-		@RuneAttribute("@key:external")
+		@RuneAttribute(EXTERNAL_KEY)
 		public MetaFields.MetaFieldsBuilder setExternalKey(String externalKey) {
 			this.externalKey = externalKey==null?null:externalKey;
 			return this;
@@ -414,7 +415,7 @@ public MetaFields.MetaFieldsBuilder setKey(List<? extends Key> keys) {
 		}
 		
         @Override
-        @RuneAttribute("@key:scoped")
+        @RuneAttribute(SCOPED_KEY)
         public MetaFields.MetaFieldsBuilder setScopedKey(String scopedKey) {
             this.key = new ArrayList<>();
             if (scopedKey!=null)  {