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+# Application framework
+
+## Foreword
+
+This document describes application framework fundamentals.  
+FCS (Fully Conform to Specification) implementation is still under development.  
+It may happen that current implementation somehow diverges with specifications.
+
+## Overview
+
+The application framework on top of the security framework
+provides components to install and uninstall applications
+as well as to run them in a secured environment.
+
+The goal of the framework is to manage applications and hide security details
+to applications.
+
+For the reasons explained in introduction, it was choose not to reuse Tizen
+application framework directly, but to rework a new framework inspired from Tizen.
+
+fundamentals remain identical: the applications are distributed
+in a digitally signed container that should match widget specifications
+normalized by the W3C.  
+This is described by the technical recommendations 
+[Packaged Web Apps (Widgets)](http://www.w3.org/TR/widgets) and 
+[XML Digital Signatures for Widgets](http://www.w3.org/TR/widgets-digsig)
+ of the W3 consortium.
+
+As today this model allows the distribution of HTML, QML and binary applications
+but it could be extended to any other class of applications.
+
+The management of widget package signatures.  
+Current model is only an initial step, it might be extended in the
+future to include new feature (ie: incremental delivery).