![]() Just as with component diagrams, these groupings are represented as file folders. ![]() Packages: A UML shape that allows you to put different elements into groups. For example, Psycho Killer is outside the scope of occupations in the chainsaw example found below. All use cases outside the box would be considered outside the scope of that system. System boundary boxes: A box that sets a system scope to use cases. In complex diagrams, it is important to know which actors are associated with which use cases. Use cases: Horizontally shaped ovals that represent the different uses that a user might have.Īctors: Stick figures that represent the people actually employing the use cases.Īssociations: A line between actors and use cases. Here are all the shapes you will be able to find in Lucidchart: You can use this guide to learn how to draw a use case diagram if you need a refresher. Het maakt gebruik van symbolen zoals rechthoeken, cirkels en pijlen, én korte tekstlabels waarin de gegevensinvoer- en uitvoer, opslagpunten en de trajecten tussen diverse bestemmingen worden weergegeven. To depict the system boundary, draw a box around the use case itself. Een data flow diagram (DFD) geeft een visueel overzicht van de informatiestroom binnen een proces of systeem. To adjust the circle’s size, click on it, click on a blue square and drag it to resize. Use the grids to align the circles on the page. ![]() Click and drag a circle to the diagram to add the uncertain nodes. Stick figures represent actors in the process, and the actors participation in the system is modeled with a line between the actor and use case. Tip: Use the text formatting options at the top of the diagram to change fonts, colors, spacing, etc. Use cases are represented with a labeled oval shape. A data flow diagram (DFD) maps out the flow is information for every process or system. The notation for a use case diagram is pretty straightforward and doesn't involve as many types of symbols as other UML diagrams. UML is the modeling toolkit that you can use to build your diagrams.
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