diff --git a/models/CustomerManagement.Json b/models/CustomerManagement.Json
index eb7377e..aa6b0ce 100644
--- a/models/CustomerManagement.Json
+++ b/models/CustomerManagement.Json
@@ -1,10 +1,15 @@
 {
-  "relations": [],
-  "transfer": {
-    "src": "Companies.{company}",
-    "dst": "customers.{customer}",
-    "data": {"type": "String", "name": "address"},
-    "style": "PULL",
-    "multiplicity": "1:*"
-  }
+  "name" : "CustomerManagement",
+  "contexts" : [
+    {
+      "relations": [],
+      "transfer": {
+        "src": "Companies.{company}",
+        "dst": "customers.{customer}",
+        "data": {"type": "String", "name": "address"},
+        "style": "PULL",
+        "multiplicity": "1:*"
+      }
+    }
+  ]
 }
\ No newline at end of file
diff --git a/models/Memento.Json b/models/Memento.Json
new file mode 100644
index 0000000..d521a4d
--- /dev/null
+++ b/models/Memento.Json
@@ -0,0 +1,25 @@
+{
+  "name" : "Memento",
+  "contexts" : [
+    {
+      "relations": [],
+      "transfer": {
+        "src": "Main.Star",
+        "dst": "Main.States",
+        "data": {"type": "Memento", "name": "memento"},
+        "style": "PULL",
+        "multiplicity": "1:1"
+      }
+    },
+    {
+      "relations": [],
+      "transfer": {
+        "src": "Main.States",
+        "dst": "Main.Star",
+        "data": {"type": "Memento", "name": "memento"},
+        "style": "PUSH",
+        "multiplicity": "1:1"
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/main/java/models/objectOrientedTransfer/DataTransferDesign.java b/src/main/java/models/objectOrientedTransfer/DataTransferDesign.java
index 9d8ccd1..6baa035 100644
--- a/src/main/java/models/objectOrientedTransfer/DataTransferDesign.java
+++ b/src/main/java/models/objectOrientedTransfer/DataTransferDesign.java
@@ -1,36 +1,50 @@
 package models.objectOrientedTransfer;
 
+import parser.*;
+import parser.exceptions.ExpectedJsonValue;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Stack;
 
 /**
  * The final data transfer designs containing delta algebra and dependency injection.
- * 
+ *
  * @author Nitta
- * 
+ *
  */
 public class DataTransferDesign {
 	private List<DataTransferContext> transferContexts;
 	private DeltaComplex deltaComplex;
-	
+
 	public DataTransferDesign(DataTransferContext transferContext) throws IllegalRelationException {
 		this.transferContexts = new ArrayList<>();
 		this.transferContexts.add(transferContext);
 		this.deltaComplex = createDefaultDeltaComlex(transferContext);
 	}
 
+	public DataTransferDesign(JsonValue jsonValue) throws IllegalRelationException {
+		this.transferContexts = new ArrayList<>();
+		for (StringValue keyValue : jsonValue.getJson().keySet()) {
+			String key = keyValue.getStringValue();
+			if (key.equals("contexts")) {
+				ArrayValue arrayValue = (ArrayValue) jsonValue.getValue(keyValue);
+				setTransferContexts(arrayValue);
+			}
+		}
+	}
+
 	public DeltaComplex createDefaultDeltaComlex(DataTransferContext transferContext) throws IllegalRelationException {
 		if (transferContext.getTransferStyle() == PushPullValue.PUSH) {
 			// PUSH transfer
 			if (transferContext.getTransferMultiplicity() == MultiplicityValue.ManyToOne
 					|| transferContext.getTransferMultiplicity() == MultiplicityValue.OneToOne) {
 				// Simple PUSH
-				
+
 				// Construct all deltas.
 				Stack<Delta> deltaStack = new Stack<>();
 				ReferenceEdge bottomReference = constructDefaultDeltas(transferContext, deltaStack);
-				
+
 				// Add the data transfer delta.
 				ObjectNode srcObj = (ObjectNode) bottomReference.getSource();
 				ObjectNode dstObj = (ObjectNode) transferContext.getDataType();
@@ -39,7 +53,7 @@
 				PrimitivePullPushDelta primDelta = new PrimitivePullPushDelta(dataEdge, bottomReference, dataName);		// PUSH data transfer
 				Delta dataTransferDelta = new Delta(primDelta);
 				DeltaComplex deltaComplex = new DeltaComplex(dataTransferDelta);
-				
+
 				// Add initialization deltas.
 				while (!deltaStack.isEmpty()) {
 					deltaComplex.attach(deltaStack.pop());
@@ -56,7 +70,7 @@
 				// Construct all deltas.
 				Stack<Delta> deltaStack = new Stack<>();
 				ReferenceEdge bottomReference = constructDefaultDeltas(transferContext, deltaStack);
-				
+
 				// Add the data transfer delta.
 				ObjectNode srcObj = (ObjectNode) bottomReference.getDestination();
 				ObjectNode dstObj = (ObjectNode) transferContext.getDataType();
@@ -65,7 +79,7 @@
 				PrimitivePullDelta primDelta = new PrimitivePullDelta(bottomReference, dataEdge, dataName);		// PULL data transfer
 				Delta dataTransferDelta = new Delta(primDelta);
 				DeltaComplex deltaComplex = new DeltaComplex(dataTransferDelta);
-				
+
 				// Add initialization deltas.
 				while (!deltaStack.isEmpty()) {
 					deltaComplex.attach(deltaStack.pop());
@@ -128,7 +142,7 @@
 						}
 					}
 				}
-				
+
 				// 1) Create container passing deltas.
 				List<PrimitiveDelta> primitiveDeltaList = new ArrayList<>();
 				for (ReferenceEdge dstEdge: oneDestination) {
@@ -164,13 +178,13 @@
 						prevReference = new ReferenceEdge(srcObj, dstObj, dataName);
 					}
 				}
-				
-				if (!toOne && 
+
+				if (!toOne &&
 						((transferStyle == PushPullValue.PUSH && (relation.getMultiplicity() == MultiplicityValue.ManyToOne || relation.getMultiplicity() == MultiplicityValue.OneToOne))
 						 || (transferStyle != PushPullValue.PUSH && (relation.getMultiplicity() == MultiplicityValue.OneToMany || relation.getMultiplicity() == MultiplicityValue.OneToOne)))) {
 					// If the specified multiplicity of destination objects does not match to their potential multiplicity,
 					// then the reference to select one destination object from potential multiple objects is needed.
-					
+
 					// 2) Create a component identifying delta.
 					PrimitiveDelta componentSelectingDelta = null;
 					for (ReferenceEdge dstEdge: manyDestinations) {
@@ -201,7 +215,7 @@
 							prevReference = new ReferenceEdge(srcObj, dstObj, dataName);
 						}
 					}
-					
+
 					// 3) Create a component obtaining delta.
 					if (primitiveDeltaList.size() > 0) {
 						Delta delta = null;
@@ -225,6 +239,23 @@
 		return prevReference;
 	}
 
+    private void setTransferContexts(ArrayValue arrayValue) throws IllegalRelationException {
+        List<Value> values = arrayValue.getValues();
+        for (int i = 0; i<values.size(); i++) {
+            if (!(values.get(i) instanceof JsonValue)) {
+                throw new ExpectedJsonValue("contextsの中身がJsonではありません。");
+            }
+            if (i == 0) {
+                DataTransferContext transferContext = new DataTransferContext(values.get(i));
+                this.transferContexts.add(transferContext);
+                this.deltaComplex = createDefaultDeltaComlex(transferContext);
+            } else {
+                DataTransferContext transferContext = new DataTransferContext(values.get(i));
+                addTransferContext(transferContext);
+            }
+        }
+    }
+
 	public DeltaComplex getDeltaComplex() {
 		return deltaComplex;
 	}
diff --git a/src/test/java/generator/TestMultipleContexts.java b/src/test/java/generator/TestMultipleContexts.java
index cf40d61..a2de08c 100644
--- a/src/test/java/generator/TestMultipleContexts.java
+++ b/src/test/java/generator/TestMultipleContexts.java
@@ -2,7 +2,7 @@
 
 import generators.ASTGenerator;
 import models.objectOrientedTransfer.*;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/src/test/java/parser/TestParser.java b/src/test/java/parser/TestParser.java
index c950e0c..08faf1b 100644
--- a/src/test/java/parser/TestParser.java
+++ b/src/test/java/parser/TestParser.java
@@ -22,10 +22,9 @@
         try {
             Parser parser = new Parser(new BufferedReader(new FileReader(file)));
             Value jsonValue = parser.getValue();
-            DataTransferContext context = new DataTransferContext(jsonValue);
             DataTransferDesign design;
             try {
-                design = new DataTransferDesign(context);
+                design = new DataTransferDesign((JsonValue) jsonValue);
                 System.out.println(ASTGenerator.generate(design));
             } catch (IllegalRelationException e) {
                 e.printStackTrace();