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Activation boxes, or method-call boxes, are opaque rectangles drawn on top of lifelines to represent that processes are being performed in response to the message (ExecutionSpecifications in UML). Objects calling methods on themselves use messages and add new activation boxes on top of any others to indicate a further level of processing.
In UML 1.x, it was also possible to have a discrete list of values, but this was eliminated in UML 2.0. 2. It specifies how many objects may be connected across an instance of an association which is written as a range of values (like 1..*). Mandatory - A required multiplicity, the lower bound is at least one, usually 1..1 or 1
Reading a communication diagram involves starting at message 1.0, and following the messages from object to object. Communication diagrams show much of the same information as sequence diagrams, but because of how the information is presented, some of it is easier to find in one diagram than the other.
Activity diagrams [1] are graphical representations of workflows of stepwise activities and actions [2] with support for choice, iteration, and concurrency. In the Unified Modeling Language, activity diagrams are intended to model both computational and organizational processes (i.e., workflows), as well as the data flows intersecting with the related activities.
The C4 model relies at this level on existing notations such as Unified Modelling Language (UML), Entity Relation Diagrams (ERD) or diagrams generated by Integrated Development Environments (IDE). For level 1 to 3, the C4 model uses 5 basic diagramming elements: persons, software systems, containers, components and relationships.
Has libraries of shapes for: UML class, sequence, activity, use case and more. JetUML: Yes Unknown Unknown Unknown Java Unknown Unknown JetUML is designed for fast diagramming with a minimalist feature set. Lucidchart: Unknown Unknown Unknown Unknown Unknown Unknown Google Drive, Google Apps, JIRA, Confluence, Jive, and Box.
The UML specification [1] prescribes that a transition involves exiting all nested states from the current active state (which might be a direct or transitive substate of the main source state) up to, but not including, the least common ancestor (LCA) state of the main source and main target states. As the name indicates, the LCA is the lowest ...
It was described for the first time in 2002 in the book "Executable UML: A Foundation for Model-Driven Architecture". [1] The language "combines a subset of the UML (Unified Modeling Language) graphical notation with executable semantics and timing rules." [2] The Executable UML method is the successor to the Shlaer–Mellor method. [3]