diff -r b86b8898fd52 -r 707e2be17a43 doc/overview.rst
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/overview.rst	Thu Sep 06 00:32:45 2012 +0200
@@ -0,0 +1,10 @@
+Project overview
+================
+
+In order to target the widest possible range of programmable devices and keep efficient, Beremiz use C code as an intermediate language. 
+
+To be executed, C needs to be compiled. `GCC <http://gcc.gnu.org>`_ serve that purpose perfectly.
+
+PLC program is expressed in languages defined in IEC-61131, including graphical languages. Thanks to PLCopen TC2, those graphical languages have a standardised representation, in XML.
+
+To be continued.