diff --git a/lib/models/acl.js b/lib/models/acl.js
new file mode 100644
index 00000000..d10f2c3c
--- /dev/null
+++ b/lib/models/acl.js
@@ -0,0 +1,17 @@
+// Schema ACL options
+
+
+// Object level permissions
+
+// open: no protection
+// none: always rejected
+// owner: only the owner
+// loggedIn: any logged in user
+// roles: logged in users with the roles
+// related: owner of the related objects
+
+// Class level permissions
+
+// scopes
+
+// URL level permissions
\ No newline at end of file
diff --git a/lib/models/application.js b/lib/models/application.js
new file mode 100644
index 00000000..173d2b97
--- /dev/null
+++ b/lib/models/application.js
@@ -0,0 +1,41 @@
+// Application model
+var ApplicationSchema = {
+
+    // Basic information
+    id: {type: String, required: true},
+    name: {type: String, required: true},
+    description: String, // description
+    icon: String, // The icon url
+    public: Boolean,
+    permissions: [String],
+
+    userId: String,
+
+    status: String,
+
+    // Keys
+    clientKey: String,
+    javaScriptKey: String,
+    restApiKey: String,
+    windowsKey: String,
+    masterKey: String,
+
+    // Push notification
+    pushPlatforms: [String],
+    pushCredentials: [],
+
+    // Authentication
+    authenticationEnabled: Boolean,
+    anonymousAllowed: Boolean,
+    schemes: [String], // Basic, facebook, github, google
+    attachedCredentials: [],
+
+   // email
+    email: String, // e-mail address
+    emailVerified: Boolean, // Is the e-mail verified
+
+    collaborators: [String], // A list of users ids who have permissions to work on this app
+
+    created: Date,
+    lastUpdated: Date
+};
diff --git a/lib/models/installation.js b/lib/models/installation.js
new file mode 100644
index 00000000..37e8bd0d
--- /dev/null
+++ b/lib/models/installation.js
@@ -0,0 +1,4 @@
+// Device registration
+var InstallationSchema = {
+
+};
diff --git a/lib/models/role.js b/lib/models/role.js
new file mode 100644
index 00000000..a9546777
--- /dev/null
+++ b/lib/models/role.js
@@ -0,0 +1,11 @@
+// Role model
+var RoleSchema = {
+    id: {type: String, required: true},
+    name: {type: String, required: true},
+    roles: [String],
+    users: [String],
+    acl: [],
+
+    created: Date,
+    lastUpdated: Date
+}
\ No newline at end of file
diff --git a/lib/models/user.js b/lib/models/user.js
new file mode 100644
index 00000000..38d20452
--- /dev/null
+++ b/lib/models/user.js
@@ -0,0 +1,11 @@
+// User model
+var UserSchema = {
+    id: {type: String, required: true},
+    username: {type: String, required: true},
+    password: String,
+    authData: [],
+    email: String,
+    emailVerified: Boolean,
+    created: Date,
+    lastUpdated: Date
+}
\ No newline at end of file