Business
Business is the activity of making one's living or making money by producing or buying and selling goods or services. Simply put, it is "any activity or enterprise entered into for profit. It does not mean it is a company, a corporation, partnership, or have any such formal organization, but it can range from a street peddler to General Motors." The term is also often used colloquially (but not by lawyers or public officials) to refer to a company, but this article will not deal with that sense of the word.
Public
In public relations and communication science, publics are groups of individual people, and the public (a.k.a. the general public) is the totality of such groupings. This is a different concept to the sociological concept of the Öffentlichkeit or public sphere. The concept of a public has also been defined in political science, psychology, marketing, and advertising. In public relations and communication science, it is one of the more ambiguous concepts in the field. Although it has definitions in the theory of the field that have been formulated from the early 20th century onwards, it has suffered in more recent years from being blurred, as a result of conflation of the idea of a public with the notions of audience, market segment, community, constituency, and stakeholder.
Public Administration
Public Administration is the implementation of government policy and also an academic discipline that studies this implementation and prepares civil servants for working in the public service. As a "field of inquiry with a diverse scope" whose fundamental goal is to "advance management and policies so that government can function". Some of the various definitions which have been offered for the term are: "the management of public programs"; the "translation of politics into the reality that citizens see every day"; and "the study of government decision making, the analysis of the policies themselves, the various inputs that have produced them, and the inputs necessary to produce alternative policies."
Technology
Technology ("science of craft", from Greek τέχνη, techne, "art, skill, cunning of hand"; and -λογία, -logia) is first robustly defined by Jacob Bigelow in 1829 as: "...principles, processes, and nomenclatures of the more conspicuous arts, particularly those which involve applications of science, and which may be considered useful, by promoting the benefit of society, together with the emolument [compensation ] of those who pursue them" .
Technology
Today's science is tomorrow's technology.
Edward Teller The Legacy of Hiroshima (1962), 146.
Public Administration
Public administration is a process or a theory, not merely an accumulation of detailed facts. It is Verwaltungslehre. The object of administrative study should be to discover, first, what government can properly and successfully do, and secondly, how it can do these proper things with the utmost possible efficiency and at the least possible cost both of money and of energy.
Marshall E. Dimock, "The Study of Administration." American Political Science Review 31.01 (1937): p. 29
Business
Everybody knows by now, all businessmen are completely full of shit; just the worst kind of low-life, criminal, cocksuckers you could ever wanna' run into – a fuckin' piece of shit businessman. And the proof of it, the proof of it is, they don't even trust each other. They don't trust one another. When a business man sits down to negotiate a deal, the first thing he does is to automatically assume that the other guy is a complete lying prick who's trying to fuck him outta his money. So he's gotta do everything he can to fuck the other guy a little bit faster and a little bit harder. And he's gotta do it with a big smile on his face. You know that big, bullshit businessman smile? And if you're a customer – Whoah! – that's when you get the really big smile. Customer always gets that really big smile, as the businessman carefully positions himself directly behind the customer, and unzips his pants, and proceeds to service...the...account. 'I am servicing this account. This customer needs service.' Now you know what they mean. Now you know what they mean when they say, 'We specialize in customer service.' Whoever coined the phrase 'let the buyer beware' was probably bleeding from the asshole. That's business.
George Carlin, You Are All Diseased (1999)