![]() ![]() the fragment can have only one thread executing it at once. Equivalent to an alt with only one trace.ĭefines that the calls within the fragment run in parallel.ĭefines that the calls within the fragment run in a loop.ĭefines that the calls within the fragment reside in a critical section, i.e. I have this bit of plantuml: startuml title Sequence diagram A -> B : First B -> C : Second B -> A : Third enduml It renders like this: I would like to get this instead, with two arrows 'happening concurrently': Any hints on how to achieve this are appreciated sequence-diagram plantuml Share. Here is a link where you can find some nice resources on the subject Share. ĭefines condition to a single call - the call will execute only if the supplied condition is true. If else condition, also called alternatives in UML terms can indeed be represented in sequence diagrams. altĭivides fragment into groups and defines condition for each group - only the one whose condition is true will execute. This ease of use is largely attributed to the user-friendly nature of its syntax, designed to be both intuitive and easy to remember. They enable you to represent different paths of execution based on certain conditions. The following table provides guidance on the most useful operators, and their corresponding descriptions. Creating sequence diagrams with PlantUML is remarkably straightforward. For instance, in order to define that a call will execute only if a certain condition is true – we delimit the call with a fragment and use the operator ‘Opt’ to specify the condition. Interaction Operators (shown below) are used to characterize the fragment. PlantUML is a powerful tool that allows us to create visual representations of various aspects of software systems, including activity diagrams. The latter calls can be partitioned to groups (combined fragment) to show according to which condition each group will execute. With fragments we can delimit set of calls to show that they 1) execute only if a given condition is true 2) execute in a loop 3) run in parallel 4) reside within a critical section 5)etc. Using Interaction Frames (Combined Fragment)Īnother way of presenting control logic is using fragments (a.k.a interaction frames) together with Interaction Operators. The sequence bellow shows CarsManager that iterate though collection of Cars and execute a wash on each Car, which in turn delegate to the appropriate strategy according to the requested technique. Indeed, the activity diagram is more appropriate to model control logic that involves conditions, loop etc, but in practice, most developers prefer to stick with the sequence diagram to show how objects interact together with the control logic involved.Ī simple way of presenting conditions and loops is using simple notes. I think by adding this ability to the Sequence charting ability will be great. ![]() A common issue with sequence diagrams is how to show conditions and iterations. Hello, I wanted timers symbols to be implemented in the sequence diagrams and lets say its syntax will be: Timer Start : text of the timer. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |