a description of the way in which the well-being of individuals depends on different combinations of goods and services consumed. [GBA
Mathematical function the relates different levels of individual goal satisfaction with utility levels. Because monetary revenue is an easily measurable goal, the utility function frequently is expressed in terms of this variable.
a theoretical construct that relates utility (a measure of satisfaction or material quality of life) to the consumption of various combinations of material goods and services
A (usually private) member¤ function of a class¤ which implements some common functionality required by the class¤ public member¤ functions. The use of utility functions¤ improves modularity¤ (and therefore maintainability) by eliminating repeated sequences of code. To avoid loss of run-time performance, utility functions¤ are often declared inline.
A mathematical expression that assigns a value to all possible choices. In portfolio theory, the utility function expresses the preferences of economic entities with respect to perceived risk and expected return.