Systems Analysis and Synthesis

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7.1. Use-definition Analysis

7.1.1. The Determines Relation

We begin by listing the cases when one datum Determines another:

assignment: If the value of

x

is used to define a new value of

y

, as in

y^{'} = f (x, \dots)

, then

x Determines y^{'}

control: If the value of

x

determines whether

y

is given a particular definition, as in

(x > 1; y^{'} = 0)

, then

x Determines y^{'}

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