diff --git a/package.json b/package.json
index e12fa52c8..33cfb7393 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "kuzzle-sdk",
-  "version": "1.0.0-alpha.4",
+  "version": "1.0.0-alpha.5",
   "description": "A connector for the Kuzzle API",
   "author": "The Kuzzle Team <support@kuzzle.io>",
   "repository": {
diff --git a/src/kuzzleDataCollection.js b/src/kuzzleDataCollection.js
index 809d353f1..296f1b95f 100644
--- a/src/kuzzleDataCollection.js
+++ b/src/kuzzleDataCollection.js
@@ -122,6 +122,29 @@ KuzzleDataCollection.prototype.count = function (filters, options, cb) {
   return this;
 };
 
+/**
+ * Create a new empty data collection, with no associated mapping.
+ * Kuzzle automatically creates data collections when storing documents, but there are cases where we
+ * want to create and prepare data collections before storing documents in it.
+ *
+ * @param {object} [options] - Optional parameters
+ * @param {responseCallback} [cb] - returns Kuzzle's response
+ * @returns {*} this
+ */
+KuzzleDataCollection.prototype.create = function (options, cb) {
+  var data = {};
+
+  if (!cb && typeof options === 'function') {
+    cb = options;
+    options = null;
+  }
+
+  data = this.kuzzle.addHeaders(data, this.headers);
+  this.kuzzle.query(this.collection, 'write', 'createCollection', data, options, cb);
+
+  return this;
+};
+
 /**
  * Create a new document in Kuzzle.
  *
@@ -176,6 +199,27 @@ KuzzleDataCollection.prototype.createDocument = function (document, options, cb)
   return this;
 };
 
+/**
+ * Delete this data collection and all documents in it.
+ *
+ * @param {object} [options] - Optional parameters
+ * @param {responseCallback} [cb] - returns Kuzzle's response
+ * @returns {*} this
+ */
+KuzzleDataCollection.prototype.delete = function (options, cb) {
+  var data = {};
+
+  if (!cb && typeof options === 'function') {
+    cb = options;
+    options = null;
+  }
+
+  data = this.kuzzle.addHeaders(data, this.headers);
+  this.kuzzle.query(this.collection, 'admin', 'deleteCollection', data, options, cb);
+
+  return this;
+};
+
 /**
  * Delete persistent documents.
  *
@@ -389,7 +433,6 @@ KuzzleDataCollection.prototype.replaceDocument = function (documentId, content,
 KuzzleDataCollection.prototype.subscribe = function (filters, cb, options) {
   var room;
 
-  this.kuzzle.isValid();
   this.kuzzle.callbackRequired('KuzzleDataCollection.subscribe', cb);
 
   room = new KuzzleRoom(this, options);
@@ -397,6 +440,29 @@ KuzzleDataCollection.prototype.subscribe = function (filters, cb, options) {
   return room.renew(filters, cb);
 };
 
+/**
+ * Truncate the data collection, removing all stored documents but keeping all associated mappings.
+ * This method is a lot faster than removing all documents using a query.
+ *
+ * @param {object} [options] - Optional parameters
+ * @param {responseCallback} [cb] - returns Kuzzle's response
+ * @returns {*} this
+ */
+KuzzleDataCollection.prototype.truncate = function (options, cb) {
+  var data = {};
+
+  if (!cb && typeof options === 'function') {
+    cb = options;
+    options = null;
+  }
+
+  data = this.kuzzle.addHeaders(data, this.headers);
+  this.kuzzle.query(this.collection, 'admin', 'truncateCollection', data, options, cb);
+
+  return this;
+};
+
+
 /**
  * Update parts of a document
  *
diff --git a/src/kuzzleRoom.js b/src/kuzzleRoom.js
index c2d5000ad..369a3195a 100644
--- a/src/kuzzleRoom.js
+++ b/src/kuzzleRoom.js
@@ -26,8 +26,6 @@ function KuzzleRoom(kuzzleDataCollection, options) {
     throw new Error('KuzzleRoom: missing parameters');
   }
 
-  kuzzleDataCollection.kuzzle.isValid();
-
   // Define properties
   Object.defineProperties(this, {
     // private properties