diff --git a/opensym2017/content/05-architecture.tex b/opensym2017/content/05-architecture.tex
index 4b0a81e..825ccc0 100644
--- a/opensym2017/content/05-architecture.tex
+++ b/opensym2017/content/05-architecture.tex
@@ -1,6 +1,12 @@
 \section{Architecture}
 \label{sec:architecture}
 
+Based on the great list of functional requirements desired by Brazilian Federal
+Government we decided to select some FOSS systems that already contemplate some
+of them and improve these systems. And bringing the idea of community, it is
+undoable build a platform to be used by communities, which is a complex
+scenario, using just one tool.
+
 At the point of view of the architecture, two main requirements was brought by
 the Brazilian Federal Government for the new platform:
 
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