diff --git a/core/modules/migrate/src/Entity/Migration.php b/core/modules/migrate/src/Entity/Migration.php
index 102098a..be69b2b 100644
--- a/core/modules/migrate/src/Entity/Migration.php
+++ b/core/modules/migrate/src/Entity/Migration.php
@@ -134,7 +134,7 @@ class Migration extends ConfigEntityBase implements MigrationInterface, Requirem
    *
    * @var array
    */
-  protected $sourceIds = array();
+  protected $sourceIds = [];
 
   /**
    * The destination identifiers.
@@ -144,7 +144,7 @@ class Migration extends ConfigEntityBase implements MigrationInterface, Requirem
    *
    * @var array
    */
-  protected $destinationIds = FALSE;
+  protected $destinationIds = [];
 
   /**
    * Information on the high water mark.
@@ -179,6 +179,8 @@ class Migration extends ConfigEntityBase implements MigrationInterface, Requirem
   protected $highWaterStorage;
 
   /**
+   * Track time of last import if TRUE.
+   *
    * @var bool
    */
   protected $trackLastImported = FALSE;
@@ -188,14 +190,14 @@ class Migration extends ConfigEntityBase implements MigrationInterface, Requirem
    *
    * @var array
    */
-  protected $requirements = array();
+  protected $requirements = [];
 
   /**
    * These migrations, if ran at all, must be executed before this migration.
    *
    * @var array
    */
-  protected $migration_dependencies = array();
+  protected $migration_dependencies = [];
 
   /**
    * The entity manager.
@@ -382,4 +384,66 @@ public function isComplete() {
     return $this->getMigrationResult() === static::RESULT_COMPLETED;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getProcess() {
+    return $this->get('process');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setProcess(array $process) {
+    $this->set('process', $process);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getSystemOfRecord() {
+    return $this->get('systemOfRecord');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isTrackLastImported() {
+    return $this->get('trackLastImported');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getSource() {
+    return $this->get('source');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setSource(array $source) {
+    $this->set('source', $source);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDestination() {
+    return $this->get('destination');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setDestination(array $destination) {
+    $this->set('destination', $destination);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getMigrationDependencies() {
+    return $this->get('migration_dependencies');
+  }
 }
diff --git a/core/modules/migrate/src/Entity/MigrationInterface.php b/core/modules/migrate/src/Entity/MigrationInterface.php
index 4bfb89f..2904fb0 100644
--- a/core/modules/migrate/src/Entity/MigrationInterface.php
+++ b/core/modules/migrate/src/Entity/MigrationInterface.php
@@ -179,4 +179,76 @@ public function setMigrationResult($result);
    */
   public function getMigrationResult();
 
+  /**
+   * Get the current configuration describing the process plugins.
+   *
+   * @return array
+   *   The configuration describing the process plugins.
+   */
+  public function getProcess();
+
+  /**
+   * Set the current configuration describing the process plugins.
+   *
+   * @param array $process
+   *   The configuration describing the process plugins.
+   */
+  public function setProcess(array $process);
+
+  /**
+   * Get the current system of record of the migration.
+   *
+   * @return string
+   *   The current system of record of the migration.
+   */
+  public function getSystemOfRecord();
+
+  /**
+   * Checks if the migration should track time of last import.
+   *
+   * @return bool
+   *   TRUE if the migration is tracking last import time.
+   */
+  public function isTrackLastImported();
+
+  /**
+   * Get the source configuration of this migration.
+   *
+   * @return array
+   *   The current source configuration.
+   */
+  public function getSource();
+
+  /**
+   * Set the source configuration of this migration.
+   *
+   * @param array $source
+   *   The source configuration, with at least a 'plugin' key.
+   */
+  public function setSource(array $source);
+
+  /**
+   * Get the destination configuration of this migration.
+   *
+   * @return array
+   *   The current destination configuration.
+   */
+  public function getDestination();
+
+  /**
+   * Set the current configuration describing the process plugins.
+   *
+   * @param array $destination
+   *   The destination configuration, with at least a 'plugin' key.
+   */
+  public function setDestination(array $destination);
+
+  /**
+   * Get the dependencies for this migration.
+   *
+   * @return array
+   *   The dependencies for this migrations.
+   */
+  public function getMigrationDependencies();
+
 }
diff --git a/core/modules/migrate/src/MigrationStorage.php b/core/modules/migrate/src/MigrationStorage.php
index cf11dd4..3d0454e 100644
--- a/core/modules/migrate/src/MigrationStorage.php
+++ b/core/modules/migrate/src/MigrationStorage.php
@@ -31,7 +31,7 @@ public function buildDependencyMigration(array $migrations, array $dynamic_ids)
       $id = $migration->id();
       $requirements[$id] = array();
       $dependency_graph[$id]['edges'] = array();
-      $migration_dependencies = $migration->get('migration_dependencies');
+      $migration_dependencies = $migration->getMigrationDependencies();
 
       if (isset($migration_dependencies['required'])) {
         foreach ($migration_dependencies['required'] as $dependency) {
diff --git a/core/modules/migrate_drupal/src/Plugin/migrate/load/LoadEntity.php b/core/modules/migrate_drupal/src/Plugin/migrate/load/LoadEntity.php
index adc6ff6..9508688 100644
--- a/core/modules/migrate_drupal/src/Plugin/migrate/load/LoadEntity.php
+++ b/core/modules/migrate_drupal/src/Plugin/migrate/load/LoadEntity.php
@@ -92,7 +92,7 @@ public function loadMultiple(EntityStorageInterface $storage, array $sub_ids = N
             // Specifically process the link field until core is fixed.
             // @see https://www.drupal.org/node/2235457
             if ($data['type'] == 'link') {
-              $process = $migration->get('process');
+              $process = $migration->getProcess();
               $process[$field_name] = [
                 'plugin' => 'd6_cck_link',
                 'source' => [
@@ -101,18 +101,18 @@ public function loadMultiple(EntityStorageInterface $storage, array $sub_ids = N
                   $field_name . '_attributes',
                 ],
               ];
-              $migration->set('process', $process);
+              $migration->setProcess($process);
             }
             else {
-              $process = $migration->get('process');
+              $process = $migration->getProcess();
               $process[$field_name] = $field_name;
-              $migration->set('process', $process);
+              $migration->setProcess($process);
             }
           }
         }
         else {
           $fields = array_keys($migration->getSourcePlugin()->fields());
-          $migration->set('process', $migration->get('process') + array_combine($fields, $fields));
+          $migration->setProcess($migration->getProcess() + array_combine($fields, $fields));
         }
         $migrations[$migration->id()] = $migration;
       }
diff --git a/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
index b613f19..22b8e9f 100644
--- a/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateFileTest.php
@@ -32,11 +32,11 @@ protected function setUp() {
     $dumps = array(
       $this->getDumpDirectory() . '/Drupal6File.php',
     );
-    /** @var \Drupal\migrate\entity\Migration $migration */
+    /** @var \Drupal\migrate\Entity\MigrationInterface $migration */
     $migration = entity_load('migration', 'd6_file');
-    $source = $migration->get('source');
+    $source = $migration->getSource();
     $source['conf_path'] = 'core/modules/simpletest';
-    $migration->set('source', $source);
+    $migration->setSource($source);
     $this->prepare($migration, $dumps);
     $executable = new MigrateExecutable($migration, $this);
     $executable->import();
diff --git a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
index 16e8e1b..018cd69 100644
--- a/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateUserPictureFileTest.php
@@ -32,11 +32,11 @@ protected function setUp() {
     $dumps = array(
       $this->getDumpDirectory() . '/Drupal6User.php',
     );
-    /** @var \Drupal\migrate\entity\Migration $migration */
+    /** @var \Drupal\migrate\Entity\MigrationInterface $migration */
     $migration = entity_load('migration', 'd6_user_picture_file');
-    $source = $migration->get('source');
+    $source = $migration->getSource();
     $source['conf_path'] = 'core/modules/simpletest';
-    $migration->set('source', $source);
+    $migration->setSource($source);
     $this->prepare($migration, $dumps);
     $executable = new MigrateExecutable($migration, $this);
     $executable->import();