Unified Modeling Language

Service: Model-based and model-driven software architecture and software engineering

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For Python software engineering services please visit also: Service: Python and REST web services development including OpenAPI with FastAPI and POSTman testing
For Java™ enterprise web application development visit also:  Jakarta EE and Jakarta EE for microservices and REST APIs<

About Webel's Live Online Educational Consultancy Service for SysML/MBSE, including help preparing for the OCSMP exams, UML, OCL, and more

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We are offering a HUGE 50% DISCOUNT off all Live Online SysMLv1/MBSE web sessions for individuals held before 21st July 2025 (pre-pay only). Offered only subject to availability.

The Webel Recipe for SysML-friendly Wolfram Language coding in Mathematica

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As part of a long term project developed, initially during work for a client, Webel IT Australia in partnership with GreenSoft Pty Ltd is developing a very complex Mathematica application with substantial SysML modelling support.

Screencast: Cameo Simulation Toolkit: v19SP3: Analysis: When a Property is typed by an abstract Block an instance of a concrete specialising Block will automatically be created and assigned even when the lower multiplicity is 0

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This screencast video is an analysis of this suspected issue:
Cameo Simulation Toolkit: v19SP3: GOTCHA/BUG: When a Property is typed by an abstract Block an instance of a concrete specialising Block (where available) will automatically be created and assigned even when the lower multiplicity is 0
It also includes a nice demo of using an Activity and Actions to simulate instance creation and assignment in Magic Model Analyst® (Cameo Simul

CATIA Magic zone

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In 2018, Dassault Systèmes acquired No Magic Inc, the developers of the MagicDraw/Cameo family of software products for Unified Modeling Language (UML®) and Systems Modeling Language v1 (SysML®), which included including: MagicDraw® UML (aka Magic Software Architect), MagicDraw SysML Plugin, Magic Cyber-System

Screencast: UML/SysML StateMachines: How a completion transition works (and why you should avoid them)

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Explains what a completion transition is and how to simulate and explore it in Cameo Simulation Toolkit for MagicDraw UML, MagicDraw SysML, or Cameo Systems Modeler.

Please note that this is NOT a recommendation to use completion transitions!

© Copyright 2020 Darren R C Kelly (Webel IT Australia). All rights reserved.

01:04: UML Behavior: Activities quick start

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Slides in this section

If you want to navigate the entire section including the additional explanatory text click on the title link of the first slide to view the full slide page, then use the next links to move through the slide pages. If you just want to view the slide images only in sequence, click on any slide to view it larger in a viewer, then click again to move through each slide in this tutorial trail section.
uml101 - Activity Diagram - notation - REFERENCE CARD
Activity example: send and catch Signal
ActivityPartitions using “swimlane” notation
Starting an Action that has an InputPin
Starting an Action that has an InputPin with multiplicity
Starting an Action that has a ControlPin
Starting an Action that has a ValuePin - LIMITED SUPPORT
Parameter vs ActivityParameterNode vs Pin
ActivityParameterNode cases - REFERENCE CARD
UML2 Types of Pins - metaclasses
OR with DecisionNode and MergeNode
AND with ForkNode and JoinNode
ForkNode and JoinNode with optional ControlFlow guards - LIMITED SUPPORT
INCORRECT InitialNode no implicit fork
CORRECT InitialNode explicit fork
OPTION double InitialNode
ExecutableNode has implicit fork
Loop: running example using DecisionNode and MergeNode and an Integer property in a context
LoopNode: basic running example
LoopNode with loopVariable - ADVANCED REFERENCE
LoopNode: running loopVariable example
ExpansionRegion: running «iterative» example
StructuredActitivityNodes (structured actions) - ADVANCED REFERENCE ONLY

01:03: UML Behavior: StateMachines quick start

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Slides in this section

If you want to navigate the entire section including the additional explanatory text click on the title link of the first slide to view the full slide page, then use the next links to move through the slide pages. If you just want to view the slide images only in sequence, click on any slide to view it larger in a viewer, then click again to move through each slide in this tutorial trail section.
Behavior StateMachines can be used to specify any of the following
StateMachines - simplified metaclass hierarchy
UML Event types for triggering Transitions
uml101 - StateMachines - NOTATION REFERENCE CARD
Kinds of States
State configurations
Effect, Entry, Do, Exit
Composite state entry and exit points
Submachines: entryPoint and exitPoint
Using submachines
Pseudostates - initial, fork, join, terminate
Pseudostates - junction
Pseudostates - choice
Pseudostates - deepHistory and shallowHistory
Transitions
Completion transitions and implicit triggers

Screencast: Tutorial: UML/SysML: StateMachines vs Activities: Operation-driven Transition case study - UML-2.5.1 'Figure 14.7 Composite State with two States' in Cameo Simulation Toolkit

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This video accompanies this detailed tutorial trail: HOWTO simulate UML-2.5.1 'Figure 14.7 Composite State with two States' in Cameo Simulation Toolkit - Operation-driven Transition case study.

This full length tutorial is a case study of the telephone dialer StateMachine shown in 'Figure 14.7 Composite State with two States' of the UML-2.5.1 specification.

Screencast: Mini tutorial: UML/SysML: Cameo Simulation Toolkit: Send and receive a Signal using a SendSignalAction and an AcceptEventAction

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A very simple demonstration of sending a Signal using a SendSignalAction and receiving it with an AcceptEventAction within Activities. Uses SysML but the same applies to UML.

Uses Cameo Simulation Toolkit for MagicDraw SysML and Cameo System Modeler.

© Copyright 2020 Darren R C Kelly (Webel IT Australia). All rights reserved.

[ARCHIVAL] Gallery: Port-based systems engineering of block models for control and simulation of Neutron Beam Instruments of the OPAL research reactor using UML/SysML (from 2007, online extracts)

 ARCHIVAL (2007): This content is now considered historical only!
This page shows (for purposes of historical reference only) an OBSOLETE early attempt at re-appropriating Unified Modeling Language (UML®) for elicitation of model elements using graphical Parsing Analysis.

Slides in this gallery

Click on any slide to view it larger in a viewer, click again to move through each slide in the gallery. Click on the title link of a slide to view the full slide page.
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Figure 01: Convention and notation for Class/Interface pairs and associated wrapper Component.
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Figure 02: Flowport notation for mapping UML2 to Java
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Figure 03: Example: neutron beam instrument flowports and blocks for UML2
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Figure 04: ExampleBlock convention for block wrapper components and organisation of engineering elements
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Figure 05: Example: UML2 composite structure diagram (systems engineering view) of a fictitious neutron beam conditioning bunker.
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Figure 06: Example: wrapped class diagram (software engineering view) of a fictitious neutron beam conditioning bunker
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Figure 07: Model: Top-level UML2 composite structure diagram (systems engineering view) for the Platypus Reflectometer
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Figure 08: Model: Bunker shield assembly for the Platypus reflectometer as UML2 composite structure diagram with flowport notation
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Figure 09: Model: bunker shield assembly for the Platypus reflectometer as "wrapped block" class diagram.
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Figure 10: Model: UML2 composite structure diagram for the monochromation beam stage of the neutron diffractometers of the OPAL NBIs.
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Figure 11: Model: UML2 composite structure diagram of the monochromator assembly
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Figure 12: Model: UML2 composite structure diagram of the monochromator stage assembly with motorised goniometer rotation, tilt, and translation stages, which are driven by encoded devices
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Figure 13: Model: wrapped block class diagram (software engineering view) for the entire monochromation beam ("logical") stage
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Figure 14: SWT TableTree ModelClient showing an instance of the Platypus reflectometer model

[ARCHIVAL] Gallery: A UML Parsing Analysis of an analysis of image formation in the MOST radiotelescope (from 2005)

 ARCHIVAL (2005): This content is now considered historical only!
This page shows (for purposes of historical reference only) an OBSOLETE early attempt at re-appropriating Unified Modeling Language (UML®) for elicitation of model elements using graphical Parsing Analysis.

Images in this gallery

Click on any image to view it larger in a viewer, click again to move through each image in the gallery. Click on the title link of an image to view the full image page.
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MOST: UML: synthesis overview
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MOST: UML: top-level
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MOST: UML: Reflector
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MOST: UML: Circularly polarised ring Antenna
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MOST: UML: Feed
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MOST: UML: Waveguide
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MOST: UML: Module
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MOST: UML: Bay
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MOST: UML: Arm

Images in this gallery section

Click on any image to view it larger in a viewer, click again to move through each image in the gallery section. Click on the title link of an image to view the full image page.
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MOST: UML: Arm
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MOST: UML: Bay
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MOST: UML: Circularly polarised ring Antenna
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MOST: UML: Feed
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MOST: UML: Module
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MOST: UML: Reflector
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MOST: UML: synthesis overview
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MOST: UML: top-level
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MOST: UML: Waveguide

Reverse-engineering into UML of the TJDO database table structure for the MOST radiotelescope information system application (2004)

 ARCHIVAL (2004): This content is now considered historical only!
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Image kind
UML Class Diagram
Gallery
[ARCHIVAL] Gallery: the MOST radiotelescope in Java and UML

[ARCHIVAL] Gallery: the MOST radiotelescope in Java and UML

 ARCHIVAL (2005): This content is now considered historical only!
Some images and videos from a research project by Webel IT and Dr Darren Kelly involving the Molonglo Observatory Synthesis Telescope (MOST).

Images in this gallery

Click on any image to view it larger in a viewer, click again to move through each image in the gallery. Click on the title link of an image to view the full image page.
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[ARCHIVAL] MOST radiotelescope: Java3D animation: flyby (4.5M)
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MOST radiotelescope: Java3D animation: steering (9.8M)
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Snapshot from a Java3D animation of the MOST radiotelescope
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Snapshot from a JSP web application for the MOST radiotelescope
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Reverse-engineering into UML of the TJDO database table structure for the MOST radiotelescope information system application (2004)

Images in this gallery section

Click on any image to view it larger in a viewer, click again to move through each image in the gallery section. Click on the title link of an image to view the full image page.
ARCHIVAL
MOST radiotelescope: Java3D animation: steering (9.8M)
ARCHIVAL
Reverse-engineering into UML of the TJDO database table structure for the MOST radiotelescope information system application (2004)
ARCHIVAL
Snapshot from a Java3D animation of the MOST radiotelescope
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Snapshot from a JSP web application for the MOST radiotelescope
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[ARCHIVAL] MOST radiotelescope: Java3D animation: flyby (4.5M)

Service: Model-driven Software Engineering [REFERRAL PAGE]

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This service is now more completely described here:

Service: Model-based and model-driven software architecture and software engineering
Visit also: Dr Darren explains: What is analysis modelling for software engineering with Systems Modeling Language (SysML)?

Webel promotes graphical, model-based develop

Service: Model-driven Analysis and Design [REFERRAL PAGE]

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This service is now more completely described here:

Service: Model-based and model-driven software architecture and software engineering
Visit also: Dr Darren explains: What is analysis modelling for software engineering with Systems Modeling Language (SysML)?

Webel promotes graphical, model-based develop

Screencast: MagicDraw SysML/Cameo analysis: Possible "gotchas" when extending the SysML Block stereotype

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Audience: Users of MagicDraw SysML or Cameo Systems Modeler who are experimenting with creating custom stereotypes that extend Block.

This screencast video has been created to demonstrate some issues that can arise if you "naively" create a custom stereotype that extends Block without: (1) closing then re-opening your project; (2) creating an appropriate MD Customization. It is not about any actual "bug" in MagicDraw/Cameo (as long as you follow the recommended procedure). If you watch it, please do watch it to the end to find how to handle such stereotypes properly.

Screencast: MagicDraw SysML/Cameo: Pros and Cons of custom stereotypes in combination with Block inheritance and Part Property structures

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Audience: Users of MagicDraw SysML or Cameo Systems Modeler who are experimenting with creating custom stereotypes for SysML.

This screencast video has been created to illustrate some pros and cons of using custom stereotypes in combination with Block inheritance and Part Property structures, and demonstrates some possible "gotchas". It concerns especially use of custom stereotypes to indicate: (1) cross-cutting aspects such as model layer membership; (2) use of tagged values to carry per-Element metadata.

Screencast: The LogicalWrapper: A proposal for a new element for UML and SysMLv1.x and SysMLv2

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© Copyright 2019 Darren R C Kelly (Webel IT Australia). All rights reserved.

This 4K narrated screencast video accompanies the white paper of the same name by Darren Kelly of Webel IT Australia available here.

MagicDraw UML (Magic Software Architect) zone

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Dr Darren of Webel IT Australia is a long-term MagicDraw® user, and previously worked for the developers No Magic Inc as a consultant and trainer (Expert Advisor for Science, Engineering, and Education).
This zone is primarily about applications of MagicDraw® to software engineering wi

[ARCHIVAL] NeXML: a generative XML Schema with EMF Java bindings for the NeXus format

 ARCHIVAL (2008): This content is now considered historical only!
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The NeXML project, based on work performed on the NeXus neutron science data format for the Australian Nuclear Science and Technology Organisation (ANSTO) between 2006-2008, showcases some older Unified Modeling Language (UML®), Java™, and XML Schema (XSD) technologies employed by Webel:
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