Читать книгу System Reliability Theory - Marvin Rausand - Страница 83

A function is a duty or an action the item has been designed to perform. A function requires one or more inputs to provide an output. The function is performed by technical and other resources and will usually also require some control (e.g. start signals). A function and its inputs and outputs are shown in Figure 2.3. The function and its elements are illustrated in Example 2.1.

Figure 2.3 A function illustrated as a functional block.