Relationship and contribution of UML

Relationship and contribution of UML

Introduction

The description of object-oriented programming has highlighted the extent necessary conceptual work: definition of classes, relationships, attributes and methods, interfaces and others. To program an application, it is not appropriate to embark headlong into writing code: it is first necessary to organize ideas, document them and then organize the production by defining modules and stages of implementation. It is this approach prior to writing the so-called modeling, and its product is a model. Specifications provided by the project owner in imperative programming were often blurred: conceptual joints (data structures, algorithms), speaking in the vocabulary of the computer, the model often had to be developed by it. The object approach in principle allows the project owner to express themselves accurately in a vocabulary that, while transcribing the needs of business, can be immediately understood by the computer. Only in principle, the modeling business analysts and application competence and professionalism that are not commonplace (OMG-MARTE, 2006).

UML

The Unified Modeling Language is a graphical modeling language for specifying, designing and documenting software components and other systems [1] .It is used by the Object Management Group develops (OMG) and is available to her as well as by ISO (ISO / IEC 19 505 for version 2.1.2 [2] ) standardized. In terms of a language UML defines identifiers for the most important concepts in a modeling and determine possible relationships between these concepts. UML defines graphical further notations for these concepts and models for static and dynamic structures, processes, which can be formulated by these terms.

The techniques UML2 provides for the specification of the behavior of a system are, based on precise semantic models. This is especially true for behavioral descriptions with the help of interactions or activities that are also designed to specify the behavior of a very fine-grained system. If the model of a system to show only some basic information flows in the system, these techniques are therefore limited. The speech unit information flows, which was introduced in UML2 is, model elements are available to improve this situation. It provides the model elements unit of information and information flow in, with which a modeler can capture information flows in a system at a high level of abstraction. Information flows can thereby connect a variety of other elements of UML2 model, in particular classes, use cases, characteristic specifications, actors, interfaces, ports, and then some. UML2 specifies any type of chart for information flows. The graphical notation for information flows and information units can occur in all structure diagrams (Mwaluseke, 2001).

What is UML?

The Unified Modeling Language (UML: Unified Modeling Language) is the sequence of a number of methods of analysis and object-oriented design that appear in the late 80's and early 90s.UML is called a modeling language, not a method. The methods consist of both a modeling language and a process. The UML combines the concepts of object orientation provided by Booch, OMT and OOSE (Booch, G. et al., 1999). UML increases the capacity of what can be ...