UML (Unified Modeling Language) is a universal modeling language in the field of software engineering. It is designed to provide a standard way of visualizing the design of a system allowing the programmer to visually visualize see what is required for the software they are working on Many people think that UML is not important to learn, that it is just a time consuming task, and in some. case, it's true, it can help several people understand the essence of a program being created. It allows everyone to be on the same page about the end goal and. to the means of achieving the end There are two types of UML diagrams are structural diagrams and behavior diagrams. Structural diagrams consist of diagrams such as class diagrams, component diagrams and deployment diagrams. de, while behavioral diagrams show what the software does step by step. Above is an example of a class diagram. It consists of three sections. The top part contains the Class Name, it needs to be a classifier or an object. The middle section contains the class attributes. The attributes describe the variables of the class. This will indicate what type of data it is and whether it is public or private variables. This (↑) is an example of a component diagram. It shows the components working together to create a system. The diagram names the objects, indicates the order, and shows the steps to reach the next component. This diagram shows in particular the water cycle. This shows that you have to constantly go to the middle of the paper to know exactly what is supposed to happen, step by step. This allows for a much easier thought process. Another type of behavioral diagram along with activity diagrams would be a sequence diagram. Sequence diagrams focus on the interactions taking place in the system. They show how objects communicate with other objects to perform a function. This diagram shows the system for creating a new event on a calendar and announcing it. This is usually what happens whenever you use something like Google Calendar to schedule something or other. The form is first requested and displayed, then it is completed and the date is checked to ensure its validity. If the date is valid then the event is registered on your schedule and an email alert will be sent. This type of diagram helps the reader understand which object works with which other object and how it does it..