DWYSYWD

Do What You Say You Will Do.  It seems simple but often it's not. The foundation of DWYSYWD begins with a clear and defined understanding of your promise.  No gray area here, it must be clear not only to you but to all stake holders. 

Cut out the generalizations.  No room for statements like "Provide good quality" or "Guarantee a timely delivery."  Replace them with clear definitions.  

• Good Quality: Determined in accordance with a governing standards body like MILSPEC, ANSI, ISO or BSi
• Timely delivery: Provide an acceptable schedule and definition.  Deliveries will be considered timely when they are made before 12PM on Monday for orders placed by the previous Friday.

Setup a channel for feedback.  Make it an open and comfortable environment.  You may have to lead a non-confrontational client to express their concerns openly.  You will be glad you did.  Solid communication is at the core of every successful relationship.

Try harder, It's not enough to merely meet expectations.  You must be willing to exceed your promise.