diff --git a/maven-plugin-annotations/pom.xml b/maven-plugin-annotations/pom.xml
index d071f56..7a0bd1d 100644
--- a/maven-plugin-annotations/pom.xml
+++ b/maven-plugin-annotations/pom.xml
@@ -31,4 +31,11 @@
   <name>Maven Plugin Java 5 Annotations</name>
   <description>Java 5 annotations to use in Mojos.</description>
 
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-artifact</artifactId>
+      <version>3.0</version>
+    </dependency>
+  </dependencies>
 </project>
diff --git a/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java
new file mode 100644
index 0000000..b15f283
--- /dev/null
+++ b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/DependencyScope.java
@@ -0,0 +1,46 @@
+package org.apache.maven.plugins.annotations;
+
+/*
+ * 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.
+ */
+
+import org.apache.maven.artifact.Artifact;
+
+/**
+ * @author Hervé Boutemy
+ * @since 3.0
+ */
+public enum DependencyScope
+{
+    COMPILE( Artifact.SCOPE_COMPILE ),
+    COMPILE_PLUS_RUNTIME( Artifact.SCOPE_COMPILE_PLUS_RUNTIME ),
+    RUNTIME( Artifact.SCOPE_RUNTIME ),
+    TEST( Artifact.SCOPE_TEST );
+
+    private final String id;
+
+    DependencyScope( String id )
+    {
+        this.id = id;
+    }
+
+    public String id()
+    {
+        return this.id;
+    }
+}
diff --git a/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/Mojo.java b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/Mojo.java
index 4ac2bed..b4d491d 100644
--- a/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/Mojo.java
+++ b/maven-plugin-annotations/src/main/java/org/apache/maven/plugins/annotations/Mojo.java
@@ -40,9 +40,9 @@ public @interface Mojo
 
     LifecyclePhase defaultPhase() default LifecyclePhase.NONE;
 
-    String requiresDependencyResolution() default "runtime";
+    DependencyScope requiresDependencyResolution() default DependencyScope.RUNTIME;
 
-    String requiresDependencyCollection() default "";
+    DependencyScope requiresDependencyCollection() default DependencyScope.RUNTIME;
 
     String instantiationStrategy() default "per-lookup";
 
diff --git a/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/JavaAnnotationsMojoDescriptorExtractor.java b/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/JavaAnnotationsMojoDescriptorExtractor.java
index ff40206..d75bda0 100644
--- a/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/JavaAnnotationsMojoDescriptorExtractor.java
+++ b/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/JavaAnnotationsMojoDescriptorExtractor.java
@@ -454,8 +454,8 @@ public class JavaAnnotationsMojoDescriptorExtractor
             mojo.setDeprecated( mojo.getDeprecated() );
 
             mojoDescriptor.setAggregator( mojo.aggregator() );
-            mojoDescriptor.setDependencyResolutionRequired( mojo.requiresDependencyResolution() );
-            mojoDescriptor.setDependencyCollectionRequired( mojo.requiresDependencyCollection() );
+            mojoDescriptor.setDependencyResolutionRequired( mojo.requiresDependencyResolution().toString() );
+            mojoDescriptor.setDependencyCollectionRequired( mojo.requiresDependencyCollection().toString() );
 
             mojoDescriptor.setDirectInvocationOnly( mojo.requiresDirectInvocation() );
             mojoDescriptor.setDeprecated( mojo.getDeprecated() );
diff --git a/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/datamodel/MojoAnnotationContent.java b/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/datamodel/MojoAnnotationContent.java
index 8a1fe1e..1f49c3d 100644
--- a/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/datamodel/MojoAnnotationContent.java
+++ b/maven-plugin-tools-annotations/src/main/java/org/apache/maven/tools/plugin/annotations/datamodel/MojoAnnotationContent.java
@@ -19,6 +19,7 @@ package org.apache.maven.tools.plugin.annotations.datamodel;
  * under the License.
  */
 
+import org.apache.maven.plugins.annotations.DependencyScope;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
 import org.apache.maven.plugins.annotations.Mojo;
 
@@ -36,9 +37,9 @@ public class MojoAnnotationContent
 
     private LifecyclePhase defaultPhase = LifecyclePhase.NONE;
 
-    private String requiresDependencyResolution = "runtime";
+    private DependencyScope requiresDependencyResolution = DependencyScope.RUNTIME;
 
-    private String requiresDependencyCollection;
+    private DependencyScope requiresDependencyCollection = DependencyScope.RUNTIME;
 
     private String instantiationStrategy = "per-lookup";
 
@@ -75,22 +76,22 @@ public class MojoAnnotationContent
         this.defaultPhase = LifecyclePhase.valueOf( phase );
     }
 
-    public String requiresDependencyResolution()
+    public DependencyScope requiresDependencyResolution()
     {
         return requiresDependencyResolution;
     }
 
-    public void requiresDependencyResolution( String requiresDependencyResolution )
+    public void requiresDependencyResolution( DependencyScope requiresDependencyResolution )
     {
         this.requiresDependencyResolution = requiresDependencyResolution;
     }
 
-    public String requiresDependencyCollection()
+    public DependencyScope requiresDependencyCollection()
     {
-        return requiresDependencyCollection == null ? "" : requiresDependencyCollection;
+        return requiresDependencyCollection;
     }
 
-    public void requiresDependencyCollection( String requiresDependencyCollection )
+    public void requiresDependencyCollection( DependencyScope requiresDependencyCollection )
     {
         this.requiresDependencyCollection = requiresDependencyCollection;
     }
diff --git a/maven-plugin-tools-annotations/src/site/apt/index.apt b/maven-plugin-tools-annotations/src/site/apt/index.apt
index ef7a20c..1d3c441 100644
--- a/maven-plugin-tools-annotations/src/site/apt/index.apt
+++ b/maven-plugin-tools-annotations/src/site/apt/index.apt
@@ -36,6 +36,8 @@ Maven Plugin Tool for Annotations
 
 +---------+
 import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugins.annotations.DependencyScope;
+import org.apache.maven.plugins.annotations.Component;
 import org.apache.maven.plugins.annotations.Execute;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
 import org.apache.maven.plugins.annotations.Mojo;
@@ -53,8 +55,8 @@ import org.apache.maven.plugins.annotations.Parameter;
        inheritByDefault = <true|false>,
        instantiationStrategy = "<per-lookup|singleton|keep-alive|poolable>",
        defaultPhase = "<phaseName>",
-       requiresDependencyResolution = "<compile|runtime|compile+runtime|test>",
-       requiresDependencyCollection = "<compile|runtime|compile+runtime|test>", // (since Maven 3.0)
+       requiresDependencyResolution = DependencyScope.<scope>,
+       requiresDependencyCollection = DependencyScope.<scope>, // (since Maven 3.0)
        requiresDirectInvocation = <false|true>,
        requiresOnline = <false|true>,
        requiresProject = <true|false>,