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The project management triangle (called also the triple constraint, iron triangle and project triangle) is a model of the constraints of project management. While its origins are unclear, it has been used since at least the 1950s. [1] It contends that: The quality of work is constrained by the project's budget, deadlines and scope (features).
The project management triangle. Barnes' contribution to the civil engineering profession is considered immense, [4] especially for his invention of the classic Time/Cost/Quality triangle – known variously as the project management triangle, Iron Triangle or 'Barnes Triangle'. He himself considered that "this was a very significant step in ...
Communications over a channel is the primary motivation of information theory. However, channels often fail to produce exact reconstruction of a signal; noise, periods of silence, and other forms of signal corruption often degrade quality. Consider the communications process over a discrete channel. A simple model of the process is shown below:
Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.
There are various platforms by which communication is transmitted, [23] and these can be categorized as paid, owned, earned, or shared, formally named as the integrated communication triangle by Grönroos and Lindberg-Repo. [34] The model acknowledges that communication must be credible and trustworthy to be effective.
Quality, cost, delivery (QCD), sometimes expanded to quality, cost, delivery, morale, safety (QCDMS), [1] is a management approach originally developed by the British automotive industry. [2] QCD assess different components of the production process and provides feedback in the form of facts and figures that help managers make logical decisions.
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The Time Bind, a 1997 book, [12] was mentioned in Newsweek's multi-page feature about "The Myth of Quality Time". [1] The same issue of Newsweek had a full-page review [ 13 ] of another 1997 book, Time for Life , [ 14 ] which emphasizes that most people have a flawed "ability to separate faulty perception of time use from reality."