# HG changeset patch
# User meillo@marmaro.de
# Date 1266491739 -3600
# Node ID 606f0ffca834f50dfcb412dcbabcd984d9b9d598
# Parent  a6b837d822b717b9d411c0cfd59944b7cb2dd526
added two more paragraphs to ch02

diff -r a6b837d822b7 -r 606f0ffca834 unix-phil.ms
--- a/unix-phil.ms	Thu Feb 18 11:24:36 2010 +0100
+++ b/unix-phil.ms	Thu Feb 18 12:15:39 2010 +0100
@@ -199,6 +199,17 @@
 These goals are parts of a software's design.
 Good design can give these properties to a software,
 bad designed software will miss them.
+.PP
+One further goal of software design is consistency.
+Consistency eases understanding, working on, and using things.
+Consistent internals and consistent interfaces to the outside can be provided by good design.
+.PP
+We should design software because good design avoids many problems during a software's lifetime.
+And we should design software because good design can offer much gain,
+that can be unrelated to the software main intend.
+Indeed, we should spend much effort into good design to make the software more valuable.
+The Unix Philosophy shows how to design software well.
+It offers guidelines to achieve good quality and high gain for the effort spent.
 
 
 .NH 1