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The old open source version is referred to as StarUML 1 in the product documentation, and the version numbering was restarted at 2.0.0. which was released in 2014. [8] A multiplatform version 3.0 was released in 2018 for Windows, Linux and MacOS. Version 4.0 was released in 2020. It included timing and interaction overview diagrams.
Dia has special objects to help draw entity-relationship models, Unified Modeling Language (UML) diagrams, flowcharts, network diagrams, and simple electrical circuits. It is also possible to add support for new shapes by writing simple XML files, using a subset of Scalable Vector Graphics (SVG) to draw the shape.
A state diagram for a door that can only be opened and closed. A state diagram is used in computer science and related fields to describe the behavior of systems. State diagrams require that the system is composed of a finite number of states. Sometimes, this is indeed the case, while at other times this is a reasonable abstraction.
The UML notation for internal transitions follows the general syntax used for exit (or entry) actions, except instead of the word entry (or exit) the internal transition is labeled with the triggering event (e.g., see the internal transition triggered by the ANY_KEY event in Figure 6). Figure 6: UML state diagram of the keyboard state machine ...
An ASM state, represented as a rectangle, corresponds to one state of a regular state diagram or finite-state machine. The Moore type outputs are listed inside the box. State Name. State Name: The name of the state is indicated inside the circle and the circle is placed in the top left corner or the name is placed without the circle. State box
The asymptotic availability, i.e. availability over a long period, of the system is equal to the probability that the model is in state 1 or state 2. This is calculated by making a set of linear equations of the state transition and solving the linear system. The matrix is constructed with a row for each state.
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State diagram for a turnstile A turnstile. An example of a simple mechanism that can be modeled by a state machine is a turnstile. [4] [5] A turnstile, used to control access to subways and amusement park rides, is a gate with three rotating arms at waist height, one across the entryway.