Usually depicted as a graph with vertices (entities) and edges (relations). A UML model is a collection of diagrams.Ī diagram is a graphical representation of a set of elements. So, UML is an artificial language that has some features of a natural language, and a formal language that has features of an informal one. The authors of UML, with the support and assistance of the entire international programming community, were able to bring together (unify) most of what was known before them. In the beginning of the 90s of the last century, the three largest specialists in this field, the authors of the most popular methods, decided to unite their efforts precisely with the aim of unifying their (and not only their) developments in accordance with the social order.
In the literature, one can find a description of the era "before UML" as "war of the methods" of modeling, none of which "fell short" to the level of the industrial standard. By the time of its appearance there were dozens of others, differing in the system of notation, degree of universality, ways of application.
Although as a means of simulating it, too, can be used. UML in the first place - the modeling language in the first sense, that is, a means of constructing descriptive models. Modeling involves creating a model that only describes the object, and simulation involves getting some additional information about the object using the created model. There are two whole words in English - modeling and simulation, which both translate as "modeling", although they mean different things. pragmatics, that is, the definition of rules for the use of language constructs to achieve certain goals.semantics, that is, the definition of rules for attributing meaning to language constructs,.syntax, that is, the definition of rules for the construction of language constructs,.Like any formal artificial language, UML contains the following parts: Another nuance: UML is a general-purpose graphical modeling language (i.e., it can be used to design anything from simple swings, to a complex hardware-software complex or even a spaceship ***), designed for specification, visualization, design and document all artifacts created during development.
It can be called formal because there are rules for its use (although the description of the UML also contains explicitly informal elements). It is artificial because it has authors: Grady Butch, Ivar Jacobson and James Rumbaugh (at the same time, the development of UML continues unabated, which puts it on a par with natural languages). UML (Unified Modeling Language) - a unified modeling language.
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