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UML Training Provides A Common Application Notation Set For

by irmagreer

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An old joke states that without software, the computer is simply an expensive paperweight, but to reflect the real status it should have targeted the user interface instead of programming. Any product or service is of little value if the target user can not understand how to interact with it. Even computer programmers have this issue with other applications with which they are unfamiliar, unless they and the author have had UML training.

In 1997, three computer scientists introduced the first version of uniform modeling language, with the purpose of providing a standardized notation methodology for all application authors. Since then it has steadily gained acceptance, and as more programmers become familiar with it there is a good probability it will become the standard. The motivation is that by having a universally understood notation set, collaboration and cross functional understanding will be much easier.

A number of diagrams are used in this unique language, much as there are many tools used to simplify quality management ideas. The use-case diagram is effective at displaying how the functional pieces of a program work together. It demonstrates in graphic manner what functions are necessary fort he application and how they should be structured for efficiency and effectiveness.

Another important area of information is included within the notion of a class diagram. This is a depiction of how specific and unique entities relate to each other. The entities can refer to things, people or even data and reflect how people normally envision a process. This diagram documents in basic form how the subjects in a process are intertwined.

Understanding the end goal and the initial state help the designer understand the direction the program will head. Diagramming how it gets from the start to completion requires a sequential depiction which is called a sequence diagram. Step by step diagramming ensures there is continuity of purpose and direction throughout the program.

Especially for detailed programs, it is critical to know what state the class object is in at each node, which will then result in a functional direction change. Following the logic of the application is simple with a state chart diagram, which reflects what has happened to the class object so the next process can be determined. It also gives a visual perspective to the range of options the program affords at each node.

Although the purpose of the diagrams is simplicity, it is rare that an application will have only a single object or class of objects as its target. Activity diagrams address the issue of more complex interactions between two or more objects simultaneously. Hey provide an easy way to capture the give and take between multiple players in a process and the variable outputs.

What makes the notations important is that they provide a significantly less complex way to look at the real purpose for an application. New members of a team can easily and quickly catch up and become productive, and they serve to keep the direction on track during development. UML training provides the technical details behind how each diagram should be created, presented and used to act as a sort of Rosetta stone between IT specialists.



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