diff --git a/lib/datasource.js b/lib/datasource.js
index 9854e36c..1e53dbeb 100644
--- a/lib/datasource.js
+++ b/lib/datasource.js
@@ -551,7 +551,7 @@ DataSource.prototype.attach = function (modelClass) {
     return;
   }
   var className = modelClass.modelName;
-  var modelDef = modelClass.dataSource.getModelDefinition(className);
+  var modelDef = modelClass.modelBuilder.getModelDefinition(className);
   var properties = modelDef.properties;
   var settings = modelDef.settings;
 
@@ -1444,7 +1444,7 @@ DataSource.prototype.disconnect = function disconnect(cb) {
 DataSource.prototype.copyModel = function copyModel(Master) {
     var dataSource = this;
     var className = Master.modelName;
-    var md = Master.dataSource.getModelDefinition(className);
+    var md = Master.modelBuilder.getModelDefinition(className);
     var Slave = function SlaveModel() {
         Master.apply(this, [].slice.call(arguments));
     };
diff --git a/lib/model-builder.js b/lib/model-builder.js
index 07d7c838..0d49dd7a 100644
--- a/lib/model-builder.js
+++ b/lib/model-builder.js
@@ -76,7 +76,7 @@ ModelBuilder.prototype.getModelDefinition = function(name) {
  *
  * @example simple case
  * ```
- * var User = dataSource.define('User', {
+ * var User = modelBuilder.define('User', {
  *     email: String,
  *     password: String,
  *     birthDate: Date,
@@ -85,7 +85,7 @@ ModelBuilder.prototype.getModelDefinition = function(name) {
  * ```
  * @example more advanced case
  * ```
- * var User = dataSource.define('User', {
+ * var User = modelBuilder.define('User', {
  *     email: { type: String, limit: 150, index: true },
  *     password: { type: String, limit: 50 },
  *     birthDate: Date,
@@ -95,7 +95,7 @@ ModelBuilder.prototype.getModelDefinition = function(name) {
  * ```
  */
 ModelBuilder.prototype.define = function defineClass(className, properties, settings, parent) {
-    var dataSource = this;
+    var modelBuilder = this;
     var args = slice.call(arguments);
     var pluralName = settings && settings.plural;
 
@@ -140,7 +140,7 @@ ModelBuilder.prototype.define = function defineClass(className, properties, sett
         // every class can receive hash of data as optional param
         ModelClass = function ModelConstructor(data, dataSource) {
             if(!(this instanceof ModelConstructor)) {
-                return new ModelConstructor(data, dataSource);
+                return new ModelConstructor(data, modelBuilder);
             }
             if(ModelClass.settings.unresolved) {
                 throw new Error('Model ' + ModelClass.modelName + ' is not defined.');
@@ -171,8 +171,7 @@ ModelBuilder.prototype.define = function defineClass(className, properties, sett
     }
 
     // Add metadata to the ModelClass
-    hiddenProperty(ModelClass, 'dataSource', dataSource);
-    hiddenProperty(ModelClass, 'schema', dataSource); // For backward compatibility
+    hiddenProperty(ModelClass, 'modelBuilder', modelBuilder);
     hiddenProperty(ModelClass, 'pluralModelName', pluralName || inflection.pluralize(className));
     hiddenProperty(ModelClass, 'relations', {});
 
@@ -290,7 +289,7 @@ ModelBuilder.prototype.define = function defineClass(className, properties, sett
         });
 
         // Define the subclass
-        var subClass = dataSource.define(className, subclassProperties, subclassSettings, ModelClass);
+        var subClass = modelBuilder.define(className, subclassProperties, subclassSettings, ModelClass);
 
         // Calling the setup function
         if(typeof subClass.setup === 'function') {
@@ -319,7 +318,7 @@ ModelBuilder.prototype.define = function defineClass(className, properties, sett
                 return new OrigDate(arg);
             };
         } else if(typeof DataType === 'string') {
-            DataType = dataSource.resolveType(DataType);
+            DataType = modelBuilder.resolveType(DataType);
         }
         
         if(prop.required) {
@@ -420,7 +419,7 @@ ModelBuilder.prototype.defineProperty = function (model, propertyName, propertyD
  *     db.defineProperty('Content', 'expiryDate', { type: Date, index: true });
  *     db.defineProperty('Content', 'isExpired', { type: Boolean, index: true });
  *
- *     // dataSource.extend allows to
+ *     // modelBuilder.extend allows to
  *     // extend the content model with competition attributes
  *     db.extendModel('Content', {
  *       competitionType: String,
@@ -438,9 +437,9 @@ ModelBuilder.prototype.extendModel = function (model, props) {
 
 
 ModelBuilder.prototype.copyModel = function copyModel(Master) {
-    var dataSource = this;
+    var modelBuilder = this;
     var className = Master.modelName;
-    var md = Master.dataSource.definitions[className];
+    var md = Master.modelBuilder.definitions[className];
     var Slave = function SlaveModel() {
         Master.apply(this, [].slice.call(arguments));
     };
@@ -449,15 +448,15 @@ ModelBuilder.prototype.copyModel = function copyModel(Master) {
 
     Slave.__proto__ = Master;
 
-    hiddenProperty(Slave, 'dataSource', dataSource);
+    hiddenProperty(Slave, 'modelBuilder', modelBuilder);
     hiddenProperty(Slave, 'modelName', className);
     hiddenProperty(Slave, 'relations', Master.relations);
 
-    if (!(className in dataSource.models)) {
+    if (!(className in modelBuilder.models)) {
 
         // store class in model pool
-        dataSource.models[className] = Slave;
-        dataSource.definitions[className] = {
+        modelBuilder.models[className] = Slave;
+        modelBuilder.definitions[className] = {
             properties: md.properties,
             settings: md.settings
         };
@@ -537,12 +536,12 @@ ModelBuilder.prototype.resolveType = function(type) {
 };
 
 /**
- * Build models from dataSource definitions
+ * Build models from schema definitions
  *
  * `schemas` can be one of the following:
  *
- * 1. An array of named dataSource definition JSON objects
- * 2. A dataSource definition JSON object
+ * 1. An array of named schema definition JSON objects
+ * 2. A schema definition JSON object
  * 3. A list of property definitions (anonymous)
  *
  * @param {*} schemas The schemas
@@ -557,7 +556,7 @@ ModelBuilder.prototype.buildModels = function (schemas) {
             // Only one item
             schemas = [schemas];
         } else {
-            // Anonymous dataSource
+            // Anonymous schema
             schemas = [
                 {
                     name: this.getSchemaName(),