Читать книгу System Reliability Theory - Marvin Rausand - Страница 69

Our study object is usually a technical system, but can also be a single technical component. A component is an item that is not broken down into its constituent parts in a reliability analysis. This is contrary to a technical system, which is always broken down into its constituent parts, be it subsystems, modules, or components.

This chapter defines, delimits, and classifies the study object. The system boundary and its operating context are defined. The concepts of system functions and their performance criteria are defined and discussed, and some simple approaches to functional modeling and analysis are presented. This is followed by a brief introduction to the Newtonian–Cartesian paradigm and its implications for system analysis. Systems are classified as simple, complicated, or complex, and it is argued why complex systems are outside the scope of this book. The chapters end with an introduction to system structure modeling by reliability block diagrams.