![]() Select this checkbox to override (but not overwrite) the 'Name' and 'Size' settings with the system default heading font definition.Ĭlick on this button to save the changes you have made, and to close the 'Preferences' dialog. This overrides the font size set in the MS Windows 'Font' dialog. This feature is particularly useful for non-English character sets.Ĭhanges take effect immediately after the 'Preferences' dialog is closed.Ĭlick on the drop-down arrow and select the font size of the caption bar text. The caption bar shows each element name immediately over its element in the diagram. Today, were going to kick it up a notch and explore how to represent conditional logic (like if-else statements) and loops (for, while) in sequence diagrams. Select the checkbox to automatically truncate the Lifelines for elements that have a defined lifecycle, by drawing an X after the last Message (that is, assume garbage collect rather than explicit delete).Ĭlick on the button to display the MS Windows 'Font' dialog, and define how the caption bar text (at the top of the Sequence diagram) is rendered. If the condition is not met, the combined fragment is omitted and the normal flow continues. Select the checkbox to set implicit Return Messages when none are explicitly drawn (recommended).ĭeselect the checkbox to use Return Messages only when they are explicitly created. When a break combined fragment is met and its guard condition is true, only this fragment is still executed and then the execution of the interaction (flow) stops. (This option takes effect when a new element is added, an existing element is repositioned, or the diagram is closed and re-opened) ![]() This is only advisable if you are familiar with the requirement to use the Alt key.Ĭlick on the drop-down arrow and select the line width (in points, between 0 and 20) of the 'focus of control' rectangle (the body at the start and end of a Message, on the Lifeline). To avoid displaying the tool-tip, deselect the checkbox. If there is no guard, the operand always runs when it is selected. If you do not hold down the Alt key the selected Message will move close to the next Message but will not go past it. After searching for quite a while on how to model exception handling in a UML Sequence Diagram I found two ways to represent exception handling in a UML Sequence Diagram. The tool-tip is to remind you that to swap the Message positions, and thus re-order the Messages, you must hold down the Alt key. Select the checkbox to display a tool-tip when you attempt to move one Message above or below another. Sequence diagrams are a vital part of UML, allowing you to visually represent interactions between objects in a system. Select the checkbox to set the default concurrency for Sequence Messages to Asynchronous.ĭeselect the checkbox to set the default concurrency to Synchronous.Įnable tooltips when re-ordering messages Select the checkbox to automatically render new Messages passing from right to left as Return Messages. Add s nested sequence diagram within operators by using the TAB button. Else (/else) is available for alternative and parallel operators. Create other operators, such as alternative, parallel, and option by using '/alt', '/par', '/opt'. Select the checkbox to display sequence numbers against the Sequence Messages on the diagrams. Create a multiple-line message using. Select the checkbox to set the default orientation of your Sequence diagrams to landscape.
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