In mathematics, and more specifically in naive set theory, the domain of definition (or simply the domain) of a function is the set of input or argument values for which the function is defined. That is, the function provides an output or value for each member of the domain.iven a function f: X â Y, the set X is the domain of f; the set Y is the codomain of f. In the expression f (x), x is the argument and f (x) is the value. One can think of an argument as an input to the function, and the value as the output.
The PMI provides services including the development of standards, research, education, publication, networking-opportunities in local chapters, hosting conferences and training seminars, and providing accreditation in project management.
What qualities are most important for a project manager to be an effective project leader? It's a question often asked and one that makes us sit back and think. Over the past few years, the people at ESI International, a leader in project management training, have looked at what makes an effective project leader. They quizzed some highly-talented project leaders and compiled a running tally of their responses.