Defining quality and reliability: a linear graph model perspective

There has been a great deal of interest in quality and reliability in recent years. Researchers have defined these `system´ measures specifically for use within their discipline. However, some of these definitions are incompatible when applied to other areas. The purpose of this paper is to define quality and reliability for use in all disciplines. By using a discipline-independent method to define these measures, a working definition of quality and reliability can be found. Linear graph models will help establish the definition and relationship