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diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java
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+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ModelResolver.java
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.contribution.resolver;
+
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+
+/**
+ * A model resolver, responsible for resolving models in the scope of an
+ * SCA contribution. 
+ * 
+ * SCA Assemblies reference artifacts of a wide variety of types. These
+ * include:
+ * <ul>
+ * <li> Reference from one SCA composite to another SCA composite
+ * <li> Reference to PolicySet files
+ * <li> Reference to interface definition files, either WSDL or Java interfaces
+ * <li> Reference to XSD files
+ * <li> Reference to any of a wide variety of implementation artifact files,
+ * including Java classes, BPEL scripts, C++ DLLs and classes, PHP scripts
+ * </ul>
+ * 
+ * In the SCA assemblies, these various artifacts are referenced using either
+ * QNames or logical URIs. Model resolvers are used to resolve these references
+ * and get the in-memory models representing the referenced artifacts.
+ * 
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.inheritfrom
+ */
+public interface ModelResolver {
+
+    /**
+     * Resolve the model representing an artifact.
+     * 
+     * @param modelClass the type of artifact
+     * @param unresolved the unresolved model
+     * @param context The context
+     * @return the resolved model
+     */
+    <T> T resolveModel(Class<T> modelClass, T unresolved, ProcessorContext context);
+    
+    /**
+     * Add a resolved model.
+     * 
+     * @param resolved The model
+     * @param context 
+     */
+    void addModel(Object resolved, ProcessorContext context);
+    
+    /**
+     * Remove a resolved model.
+     * 
+     * @param resolved
+     * @param context 
+     * @return The removed model, or null if the model was not removed
+     */
+    Object removeModel(Object resolved, ProcessorContext context);
+    
+}