--- a/Overview.html	Fri Jun 15 10:37:28 2012 +0200
+++ b/Overview.html	Fri Jun 15 11:43:48 2012 +0200
@@ -82,7 +82,9 @@
 
 <h2 class="no-num no-toc" id="abstract">Abstract</h2>
 
-<p>This document defines an API for displaying simple notifications to the user.
+<p>Web notifications defines an API for end-user notifications. A
+notification allows alerting the user outside the context of a web page of
+an occurrence, such as the delivery of email.
 
 <h2 class="no-num no-toc" id="sotd">Status of this document</h2>
 

--- a/Overview.src.html	Fri Jun 15 10:37:28 2012 +0200
+++ b/Overview.src.html	Fri Jun 15 11:43:48 2012 +0200
@@ -86,7 +86,9 @@
 
 <h2 class="no-num no-toc">Abstract</h2>
 
-<p>This document defines an API for displaying simple notifications to the user.
+<p>Web notifications defines an API for end-user notifications. A
+notification allows alerting the user outside the context of a web page of
+an occurrence, such as the delivery of email.
 
 <h2 class="no-num no-toc" id="sotd">Status of this document</h2>