A latent variable model is a statistical model that relates a set of variables (so-called manifest variables) to a set of latent variables.
DEFINITION of 'Functional Obsolescence'. A reduction in the usefulness or desirability of an object because of an outdated design feature, usually one that cannot be easily changed.The term is commonly used in real estate, but has a wide application.Next Up. reduction in the usefulness or desirability of an object because of an outdated design feature, usually one that cannot be easily changed. The term is commonly used in real estate, but has a wide application. Next Up.
Planned obsolescence or built-in obsolescence in industrial design is a policy of planning or designing a product with an artificially limited useful life, so it will become obsolete, that is, unfashionable or no longer functional after a certain period of time.lanned obsolescence or built-in obsolescence in industrial design is a policy of planning or designing a product with an artificially limited useful life, so it will become obsolete, that is, unfashionable or no longer functional after a certain period of time.