diff --git a/.scripts/travis_setup.sh b/.scripts/travis_setup.sh
index 3123d11f..61a75be1 100755
--- a/.scripts/travis_setup.sh
+++ b/.scripts/travis_setup.sh
@@ -3,16 +3,16 @@ mysql -u root -e 'create database drupal;'
 mysql -u root -e "GRANT ALL PRIVILEGES ON drupal.* To 'drupal'@'localhost' IDENTIFIED BY 'drupal';"
 
 # Java (Oracle)
-sudo apt-get install -y software-properties-common
-sudo apt-get install -y python-software-properties
-sudo add-apt-repository -y ppa:webupd8team/java
-sudo apt-get update
-echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
-echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
-sudo apt-get install -y oracle-java8-installer
-sudo update-java-alternatives -s java-8-oracle
-sudo apt-get install -y oracle-java8-set-default
-export JAVA_HOME=/usr/lib/jvm/java-8-oracle
+#sudo apt-get install -y software-properties-common
+#sudo apt-get install -y python-software-properties
+#sudo add-apt-repository -y ppa:webupd8team/java
+#sudo apt-get update
+#echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
+#echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
+#sudo apt-get install -y oracle-java8-installer
+#sudo update-java-alternatives -s java-8-oracle
+#sudo apt-get install -y oracle-java8-set-default
+#export JAVA_HOME=/usr/lib/jvm/java-8-oracle
 
 # phpcpd
 #sudo apt-get install -y phpcpd
@@ -46,6 +46,7 @@ drush en -y syslog
 drush en -y serialization
 drush en -y basic_auth
 drush en -y rest
+drush en -y simpletest
 
 drush dl rdfui --dev
 drush en -y rdfui
@@ -71,6 +72,8 @@ cd $HOME/drupal/modules
 git clone https://github.com/DiegoPino/claw-jsonld.git
 drush en -y jsonld
 
+drush en -y islandora
+
 drush -y dl bootstrap
 drush -y en bootstrap
 drush -y config-set system.theme default bootstrap
diff --git a/.travis.yml b/.travis.yml
index b3d2ddec..5948f67c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,15 +20,17 @@ before_install:
   - export ISLANDORA_DIR=$TRAVIS_BUILD_DIR
 
 install:
-#  - $TRAVIS_BUILD_DIR/tests/scripts/travis_setup.sh
+  - $TRAVIS_BUILD_DIR/.scripts/travis_setup.sh
   - composer install
   - php vendor/bin/phpcs --config-set installed_paths vendor/drupal/coder/coder_sniffer
 
 
 script:
   - $ISLANDORA_DIR/.scripts/line_endings.sh .
+  - cd $HOME/drupal/modules/islandora
   - php vendor/bin/phpcs --standard=Drupal **/*.module **/*.php --ignore=tests,vendor . 
   - php vendor/bin/phpcpd --names *.module,*.inc,*.test,*.php --exclude=vendor .
+  - cd $HOME/drupal; php core/scripts/run-tests.sh --php `which php` islandora
 
 notifications:
   irc:
diff --git a/islandora/config/install/rdf.mapping.fedora_resource_type.rdf_source.yml b/islandora/config/install/rdf.mapping.fedora_resource_type.rdf_source.yml
index c26306a1..6697ebc7 100644
--- a/islandora/config/install/rdf.mapping.fedora_resource_type.rdf_source.yml
+++ b/islandora/config/install/rdf.mapping.fedora_resource_type.rdf_source.yml
@@ -6,7 +6,7 @@ dependencies:
   module:
     - islandora
 id: fedora_resource_type.rdf_source
-targetEntityType: fedora_resource_type
+targetEntityType: fedora_resource
 bundle: rdf_source
 types:
   - 'schema:Thing'
@@ -30,7 +30,18 @@ fieldMappings:
   rdf_type:
     properties:
       - 'rdf:type'
+  vclock:
+    properties:
+      - 'islandora:vclock'
   uid:
     properties:
       - 'schema:author'
     mapping_type: rel
+  fedora_has_parent:
+    properties:
+      - 'fedora:hasParent'
+    mapping_type: rel
+  ldp_contains:
+    properties:
+      - 'ldp:contains'
+    mapping_type: rel
diff --git a/islandora/islandora.module b/islandora/islandora.module
index ac28cddc..7250ef53 100644
--- a/islandora/islandora.module
+++ b/islandora/islandora.module
@@ -80,5 +80,6 @@ function islandora_rdf_namespaces() {
     'owl' => 'http://www.w3.org/2002/07/owl#',
     'ore' => 'http://www.openarchives.org/ore/terms/',
     'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
+    'islandora' => 'http://islandora.ca/CLAW/',
   );
 }
diff --git a/islandora/islandora.services.yml b/islandora/islandora.services.yml
index 938de6ed..d1a94b40 100644
--- a/islandora/islandora.services.yml
+++ b/islandora/islandora.services.yml
@@ -6,3 +6,5 @@ services:
     tags:
       - { name: paramconverter }
     arguments: ['@entity.manager']
+  islandora.eventgenerator:
+    class: Drupal\islandora\EventGenerator\EventGenerator
diff --git a/islandora/src/Entity/FedoraResource.php b/islandora/src/Entity/FedoraResource.php
index 7ae84542..ac59060a 100644
--- a/islandora/src/Entity/FedoraResource.php
+++ b/islandora/src/Entity/FedoraResource.php
@@ -121,6 +121,18 @@ class FedoraResource extends ContentEntityBase implements FedoraResourceInterfac
     );
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function preSave(EntityStorageInterface $storage) {
+    parent::preSave($storage);
+
+    // Increment the vclock.
+    if (!$this->isNew()) {
+      $this->set("vclock", $this->get("vclock")->value + 1);
+    }
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -261,6 +273,13 @@ class FedoraResource extends ContentEntityBase implements FedoraResourceInterfac
     return array('root');
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getVclock() {
+    return $this->get('vclock')->value;
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -283,6 +302,11 @@ class FedoraResource extends ContentEntityBase implements FedoraResourceInterfac
       ->setLabel(t('UUID'))
       ->setDescription(t('The UUID of the Fedora resource entity.'))
       ->setReadOnly(TRUE);
+    $fields['vclock'] = BaseFieldDefinition::create('integer')
+      ->setLabel(t('Vector Clock'))
+      ->setDescription(t('Simple accumulator used for causality tracking'))
+      ->setDefaultValue(0)
+      ->setSetting('unsigned', TRUE);
 
     $fields['user_id'] = BaseFieldDefinition::create('entity_reference')
       ->setLabel(t('Authored by'))
@@ -340,7 +364,7 @@ class FedoraResource extends ContentEntityBase implements FedoraResourceInterfac
       ->setLabel(t('LDP Contains'))
       ->setDescription(t('Contains Fedora Resource.'))
       ->setRevisionable(TRUE)
-      ->setSetting('target_type', 'fedora_resource_type')
+      ->setSetting('target_type', 'fedora_resource')
       ->setSetting('handler', 'default')
       ->setTranslatable(TRUE)
       ->setDisplayOptions('view', array(
diff --git a/islandora/src/EventGenerator/EventGenerator.php b/islandora/src/EventGenerator/EventGenerator.php
new file mode 100644
index 00000000..e0463277
--- /dev/null
+++ b/islandora/src/EventGenerator/EventGenerator.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Drupal\islandora\EventGenerator;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\user\UserInterface;
+
+/**
+ * The default EventGenerator implementation.
+ *
+ * Provides Activity Stream 2.0 serialized events.
+ */
+class EventGenerator implements EventGeneratorInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function generateCreateEvent(EntityInterface $entity, UserInterface $user) {
+    return json_encode([
+      "@context" => "https://www.w3.org/ns/activitystreams",
+      "type" => "Create",
+      "actor" => [
+        "type" => "Person",
+        "id" => $user->toUrl()->setAbsolute()->toString(),
+      ],
+      "object" => $entity->toUrl()->setAbsolute()->toString(),
+    ]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function generateUpdateEvent(EntityInterface $entity, UserInterface $user) {
+    return json_encode([
+      "@context" => "https://www.w3.org/ns/activitystreams",
+      "type" => "Update",
+      "actor" => [
+        "type" => "Person",
+        "id" => $user->toUrl()->setAbsolute()->toString(),
+      ],
+      "object" => $entity->toUrl()->setAbsolute()->toString(),
+    ]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function generateDeleteEvent(EntityInterface $entity, UserInterface $user) {
+    return json_encode([
+      "@context" => "https://www.w3.org/ns/activitystreams",
+      "type" => "Delete",
+      "actor" => [
+        "type" => "Person",
+        "id" => $user->toUrl()->setAbsolute()->toString(),
+      ],
+      "object" => $entity->toUrl()->setAbsolute()->toString(),
+    ]);
+  }
+
+}
diff --git a/islandora/src/EventGenerator/EventGeneratorInterface.php b/islandora/src/EventGenerator/EventGeneratorInterface.php
new file mode 100644
index 00000000..766e1389
--- /dev/null
+++ b/islandora/src/EventGenerator/EventGeneratorInterface.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace Drupal\islandora\EventGenerator;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\user\UserInterface;
+
+/**
+ * Inteface for a service that provides serialized event messages.
+ */
+interface EventGeneratorInterface {
+
+  /**
+   * Generates a serialized 'Create' event.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity that was created.
+   * @param \Drupal\user\UserInterface $user
+   *   The user who created the entity.
+   *
+   * @return string
+   *   Serialized event message
+   */
+  public function generateCreateEvent(EntityInterface $entity, UserInterface $user);
+
+  /**
+   * Generates a serialized 'Create' event.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity that was updated.
+   * @param \Drupal\user\UserInterface $user
+   *   The user who updated the entity.
+   *
+   * @return string
+   *   Serialized event message
+   */
+  public function generateUpdateEvent(EntityInterface $entity, UserInterface $user);
+
+  /**
+   * Generates a serialized 'Create' event.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity that was deleted.
+   * @param \Drupal\user\UserInterface $user
+   *   The user who deleted the entity.
+   *
+   * @return string
+   *   Serialized event message
+   */
+  public function generateDeleteEvent(EntityInterface $entity, UserInterface $user);
+
+}
diff --git a/islandora/src/FedoraResourceInterface.php b/islandora/src/FedoraResourceInterface.php
index baefb5a8..806504d7 100644
--- a/islandora/src/FedoraResourceInterface.php
+++ b/islandora/src/FedoraResourceInterface.php
@@ -117,4 +117,12 @@ interface FedoraResourceInterface extends ContentEntityInterface, EntityChangedI
    */
   public function setParent(EntityTypeInterface $entity);
 
+  /**
+   * Gets the vector clock of this entity.
+   *
+   * @return int
+   *   The vector clock, used for determining causality.
+   */
+  public function getVclock();
+
 }
diff --git a/islandora/tests/src/Kernel/EventGeneratorTest.php b/islandora/tests/src/Kernel/EventGeneratorTest.php
new file mode 100644
index 00000000..e1b63559
--- /dev/null
+++ b/islandora/tests/src/Kernel/EventGeneratorTest.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace Drupal\Tests\islandora\Kernel;
+
+use Drupal\islandora\Entity\FedoraResource;
+use Drupal\islandora\EventGenerator\EventGenerator;
+use Drupal\simpletest\UserCreationTrait;
+
+/**
+ * Tests the EventGenerator default implementation.
+ *
+ * @group islandora
+ */
+class EventGeneratorTest extends IslandoraKernelTestBase {
+
+  use UserCreationTrait {
+    createUser as drupalCreateUser;
+  }
+
+  /**
+   * User entity.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $user;
+
+  /**
+   * Fedora resource entity.
+   *
+   * @var \Drupal\islandora\FedoraResourceInterface
+   */
+  protected $entity;
+
+  /**
+   * The EventGenerator to test.
+   *
+   * @var \Drupal\islandora\EventGenerator\EventGeneratorInterface
+   */
+  protected $eventGenerator;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUp() {
+    parent::setUp();
+
+    // Create a test user.
+    $this->user = $this->drupalCreateUser();
+
+    // Create a test entity.
+    $this->entity = FedoraResource::create([
+      "type" => "rdf_source",
+      "uid" => 1,
+      "name" => "Test Fixture",
+      "langcode" => "und",
+      "status" => 1,
+    ]); 
+    $this->entity->save();
+
+    // Create the event generator so we can test it.
+    $this->eventGenerator = new EventGenerator();
+  }
+
+  /**
+   * Tests the generateCreateEvent() method.
+   */
+  public function testGenerateCreateEvent() {
+    $json = $this->eventGenerator->generateCreateEvent($this->entity, $this->user);
+    $msg = json_decode($json, TRUE);
+
+    $this->assertBasicStructure($msg);
+    $this->assertTrue($msg["type"] == "Create", "Event type is 'Create'.");
+  }
+
+  /**
+   * Tests the generateUpdateEvent() method.
+   */
+  public function testGenerateUpdateEvent() {
+    $json = $this->eventGenerator->generateUpdateEvent($this->entity, $this->user);
+    $msg = json_decode($json, TRUE);
+
+    $this->assertBasicStructure($msg);
+    $this->assertTrue($msg["type"] == "Update", "Event type is 'Update'.");
+  }
+
+  /**
+   * Tests the generateDeleteEvent() method.
+   */
+  public function testGenerateDeleteEvent() {
+    $json = $this->eventGenerator->generateDeleteEvent($this->entity, $this->user);
+    $msg = json_decode($json, TRUE);
+
+    $this->assertBasicStructure($msg);
+    $this->assertTrue($msg["type"] == "Delete", "Event type is 'Delete'.");
+
+  }
+
+  /**
+   * Util function for repeated checks.
+   *
+   * @param array $msg
+   *   The message parsed as an array.
+   */
+  protected function assertBasicStructure(array $msg) {
+    // Looking for @context.
+    $this->assertTrue(array_key_exists('@context', $msg), "Context key exists");
+    $this->assertTrue($msg["@context"] == "https://www.w3.org/ns/activitystreams", "Context is activity stream.");
+
+    // Make sure it has a type.
+    $this->assertTrue(array_key_exists('type', $msg), "Type key exists");
+
+    // Make sure the actor exists, is a person, and has a uri.
+    $this->assertTrue(array_key_exists('actor', $msg), "Actor key exists");
+    $this->assertTrue(array_key_exists("type", $msg["actor"]), "Type key exists for actor.");
+    $this->assertTrue($msg["actor"]["type"] == "Person", "Actor is a person.");
+    $this->assertTrue(array_key_exists("id", $msg["actor"]), "Id key exists for actor.");
+    $this->assertTrue($msg["actor"]["id"] == $this->user->toUrl()->setAbsolute()->toString(), "Id is user's uri");
+
+    // Make sure the object exists and is a uri.
+    $this->assertTrue(array_key_exists('object', $msg), "Object key exists");
+    $this->assertTrue($msg["object"] == $this->entity->toUrl()->setAbsolute()->toString(), "Object is entity uri.");
+  }
+
+}
diff --git a/islandora/tests/src/Kernel/IslandoraKernelTestBase.php b/islandora/tests/src/Kernel/IslandoraKernelTestBase.php
new file mode 100644
index 00000000..fb5932ab
--- /dev/null
+++ b/islandora/tests/src/Kernel/IslandoraKernelTestBase.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Drupal\Tests\islandora\Kernel;
+
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Abstract base class for Islandora kernel tests.
+ *
+ */
+abstract class IslandoraKernelTestBase extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'system',
+    'user',
+    'field',
+    'filter',
+    'block',
+    'node',
+    'path',
+    'text',
+    'options',
+    'inline_entity_form',
+    'serialization',
+    'rest',
+    'rdf',
+    'jsonld',
+    'islandora'
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUp() {
+    parent::setUp();
+
+    // Bootstrap minimal Drupal environment to run the tests.
+    $this->installSchema('system', 'sequences');
+    $this->installEntitySchema('user');
+    $this->installConfig('filter');
+    $this->installEntitySchema('fedora_resource');
+  }
+
+}
+
diff --git a/islandora/tests/src/Kernel/VectorClockTest.php b/islandora/tests/src/Kernel/VectorClockTest.php
new file mode 100644
index 00000000..c73df8ee
--- /dev/null
+++ b/islandora/tests/src/Kernel/VectorClockTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Drupal\Tests\islandora\Kernel;
+
+use Drupal\islandora\Entity\FedoraResource;
+use Drupal\simpletest\UserCreationTrait;
+
+/**
+ * Tests the basic behavior of a vector clock.
+ *
+ * @group islandora
+ */
+class VectorClockTest extends IslandoraKernelTestBase {
+
+  /**
+   * Fedora resource entity.
+   *
+   * @var \Drupal\islandora\FedoraResourceInterface
+   */
+  protected $entity;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUp() {
+    parent::setUp();
+
+    // Create a test entity.
+    $this->entity = FedoraResource::create([
+      "type" => "rdf_source",
+      "uid" => 1,
+      "name" => "Test Fixture",
+      "langcode" => "und",
+      "status" => 1,
+    ]); 
+    $this->entity->save();
+
+  }
+
+  /**
+   * Tests the basic behavior of the vector clock.
+   */
+  public function testVectorClock() {
+    // Check the vclock is set to 0 when a new entity is created.
+    $this->assertTrue($this->entity->getVclock() == 0, "Vector clock initialized to zero.");
+    
+    // Edit the entity.
+    $this->entity->setName("Edited Test Fixture")->save();
+
+    // Check the vclock is incremented when the entity is updated.
+    $this->assertTrue($this->entity->getVclock() == 1, "Vector clock incremented on update.");
+  }
+
+}
diff --git a/islandora_collection/config/install/field.field.fedora_resource.collection.field_description.yml b/islandora_collection/config/install/field.field.fedora_resource.collection.field_description.yml
index 65faeb0b..4ddacfb7 100644
--- a/islandora_collection/config/install/field.field.fedora_resource.collection.field_description.yml
+++ b/islandora_collection/config/install/field.field.fedora_resource.collection.field_description.yml
@@ -7,8 +7,6 @@ dependencies:
   enforced:
     module:
       - islandora_collection
-  module:
-    - text
 id: fedora_resource.collection.field_description
 field_name: field_description
 entity_type: fedora_resource
@@ -19,7 +17,5 @@ required: false
 translatable: false
 default_value: {  }
 default_value_callback: ''
-settings:
-  display_summary: false
-field_type: text_with_summary
-
+settings: {  }
+field_type: string_long
diff --git a/islandora_collection/config/install/field.storage.fedora_resource.field_description.yml b/islandora_collection/config/install/field.storage.fedora_resource.field_description.yml
index e32f1bec..f3a05483 100644
--- a/islandora_collection/config/install/field.storage.fedora_resource.field_description.yml
+++ b/islandora_collection/config/install/field.storage.fedora_resource.field_description.yml
@@ -3,16 +3,16 @@ status: true
 dependencies:
   module:
     - islandora
-    - text
   enforced:
     module:
       - islandora_collection
 id: fedora_resource.field_description
 field_name: field_description
 entity_type: fedora_resource
-type: text_with_summary
-settings: {  }
-module: text
+type: string_long
+settings:
+  case_sensitive: false
+module: core
 locked: false
 cardinality: 1
 translatable: true
diff --git a/islandora_collection/config/install/rdf.mapping.fedora_resource_type.collection.yml b/islandora_collection/config/install/rdf.mapping.fedora_resource_type.collection.yml
index ace1ee0f..d2e102bc 100644
--- a/islandora_collection/config/install/rdf.mapping.fedora_resource_type.collection.yml
+++ b/islandora_collection/config/install/rdf.mapping.fedora_resource_type.collection.yml
@@ -34,6 +34,12 @@ fieldMappings:
       - 'schema:dateModified'
     datatype_callback:
       callable: 'Drupal\rdf\CommonDataConverter::dateIso8601Value'
+  rdf_type:
+    properties:
+      - 'rdf:type'
+  vclock:
+    properties:
+      - 'islandora:vclock'
   uid:
     properties:
       - 'schema:author'