# HG changeset patch
# User Christian Urban <urbanc@in.tum.de>
# Date 1347356436 -7200
# Node ID 5c859bb0358bc97d45bb446c809e1625991c11ff
# Parent  69fc08cfde320ef485b9031bb524647a1f9fc535
added project

diff -r 69fc08cfde32 -r 5c859bb0358b bsc-projects-12.html
--- a/bsc-projects-12.html	Mon Sep 10 05:32:09 2012 +0100
+++ b/bsc-projects-12.html	Tue Sep 11 11:40:36 2012 +0200
@@ -313,21 +313,28 @@
 <li> <H4>[CU6] Implementation of a Distributed Clock-Synchronisation Algorithm developed at NASA</H4>
   <p>
   <B>Description:</B>
-  This
+  There are many algorithms for synchronising clocks. This
   <A HREF="http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120000054_2011025573.pdf">paper</A> 
-  describes a new synchronisation algorithm for clock that communicate by exchanging
-  messages.
+  describes a new algorithm for clocks that communicate by exchanging
+  messages and thereby reach a state in which (within some bound) all clocks are synchronised.
+  The point of this project is to implement this algorithm and simulate networks of clocks.
   </p>
 
   <B>Literature:</B> 
-  The project implements the algorithm presented
-  <A HREF="http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120000054_2011025573.pdf">here</A>.
+  There is a wide range of literature on clock syncronisation algorithms. 
+  Some pointers are given in this
+  <A HREF="http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120000054_2011025573.pdf">paper</A>,
+  which describes the algorithm to be implemented in this project. Pointers
+  are given also <A HREF="http://en.wikipedia.org/wiki/Clock_synchronization">here</A>.
   </p>
 
   <p><B>Skills:</B> 
-  In order to implement a simulation of this algorithm, you need to tackle
+  In order to implement a simulation of a network of clocks, you need to tackle
   concurrency. You can do this for example in the programming language
-  <A HREF="http://www.scala-lang.org/">Scala</A>. 
+  <A HREF="http://www.scala-lang.org/">Scala</A> with the help of the 
+  <A HREF="http://akka.io">Akka</a> library. This library enables you to send messages
+  between different <I>actors</I>. <A HREF="http://www.scala-lang.org/node/242">Here</A> 
+  are some examples that explain how to implement exchanging messages between actors. 
   </p>
 
 </ul>