5.3 Analysis of External Function and Value

Primary Externally Delivered Function

We now turn our attention to Question 5a in Table 5.1: “What is the primary externally delivered value-related function?” We can parse this statement into two parts. First, the function must be ­externally delivered; it must cross the boundary of the system and influence something in the context. Second, there is a primary function—the function for which the system was built. The primary externally delivered functions for several example systems are given in Table 5.2.

Table 5.2 | Primary value-related externally delivered functions of a system: Function (operand with state and process of transformation) and the associated form

Function Form
Value-related ...

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