Added something on the architecture

[tt2015.git] / a3 / 3architecture.tex

diff --git a/a3/3architecture.tex b/a3/3architecture.tex
index 9ebbecf..08ab788 100644 (file)
--- a/a3/3architecture.tex
+++ b/a3/3architecture.tex
@@ -7,3 +7,22 @@
 % interfaces; explain your choices. Try to reuse (parts of) the 
 % test-execution automation environment that you developed during the 
 % second assignment.
+
+To test the SUT \GAST needs to be able to send input to the SUT and receive its
+output. To simplify the input and output handled by \GAST an adapter is added
+between \GAST and the SUT. This adapter abstracts away from parts of the 
+specification that are not needed for these tests, such as the payload, 
+sequence number, etc. Essentially reducing each segment to only its flags (SYN,
+ACK, FIN, etc.)
+
+An EchoServer will connect to the SUT to offer an application which will accept
+the incoming connection. However, since no data will be exchanged the EchoServer
+will not be used for anything else.
+
+Figure~\ref{fig:architecture_down} shows the flow of data from \GAST to the SUT
+and Figure~\ref{fig:architecture_up} shows the flow of data from the SUT back
+to \GAST.
+
+Hier zou dus een plaatje van ``digraph TestSetupDown'' uit ``graphs.viz'' moeten komen. \label{fig:architecture_down}
+
+Hier zou dus een plaatje van ``digraph TestSetupUp'' uit ``graphs.viz'' moeten komen. \label{fig:architecture_up}
\ No newline at end of file