1. Introduction
Interface describes the function and relation between
different things. Interface is an engineering technology term
presenting to the field of engineering technology from origin.
As a technology term, the concept of interface derives for a
long time; it is mostly used to describe equipment, component
and component's connection. That is to say, when all kinds of
components integrate, the integrated part is called interface.
Because the concept of interface preferable reflects integrated
statuses of two objects and explains the connected relation
between factors, interface is introduced to management. From
aspect of management, the meaning and extension of interface
has developed, interface not only indicates contact status
between different function departments but also indicates
contact status between different working procedure and flows,