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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
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.
The C4 model was created by the software architect Simon Brown between 2006 and 2011 on the roots of Unified Modelling Language (UML) and the 4+1 architectural view model. The launch of an official website under a Creative Commons license [3] and an article [4] published in 2018 popularised the emerging technique. [1]
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.
SysML diagrams collage. The systems modeling language (SysML) [1] is a general-purpose modeling language for systems engineering applications. It supports the specification, analysis, design, verification and validation of a broad range of systems and systems-of-systems.
UML state machine is an object-based variant of Harel statechart, [2] adapted and extended by UML. [1] [3] The goal of UML state machines is to overcome the main limitations of traditional finite-state machines while retaining their main benefits.
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.
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]