Jun 222016
 
Visual Model Analysis Overview

A modeling culture is the combination of modeling, model usage and model governance that together provide a productive way for applying model-driven development in the context of a particular organization. When we talk about model usage, we talk about impact analysis, coverage analysis, trade studies, behavioral simulations, testing, code generation, etc. Any example of model […]

May 202016
 
Displaying Relations Between Indirectly Associated Elements

The Dependency Matrix is an ideal tool for efficient analysis of dependencies between elements. In some cases, dependencies between particular elements can cause indirect relations with other model elements. Let’s take a look at the following image. In this example above, composition and inheritance structures between blocks are displayed. If a composite part depends on […]

Mar 242016
 
Thirty Meter Telescope SysML Model

The Thirty Meter Telescope (TMT) system is currently being developed by the TMT Observatory Corporation. The main objective for the TMT related analysis is to provide state-dependent power roll-ups for different operational scenarios and demonstrate that requirements are satisfied by the design as well as mass roll-ups and duration analysis of the operational use cases. […]

Mar 112016
 
Application of Model-Based System Engineering (MBSE) Principles to an Automotive Driveline Sub-System Architecture

This paper documents the real-world application of model-based systems engineering (MBSE) methodology and principles to an automotive driveline system. A system model developed in the course of this thesis supports the definition and sizing of the driveline system to best communicate and deliver functional specifications tied to customer requirements. Furthermore, this system model documents, organizes, […]

Mar 042016
 
Improve Your Modeling Productivity by Setting Custom Scope

System designs are created at different levels of abstraction. There are two problems implied by this statement: A systems engineer working in one abstraction level does not want to use elements from another abstraction level in order to keep the model consistent. For example, when selecting a type of a part property in a SysML […]

Feb 252016
 
Standard Executable UML/SysML for Model-Based Testing – Is It a Dream?

In many industries, like aerospace, defense, telecommunication and others, it’s becoming common to use UML/SysML to describe system architectures. With the introduction of OMG fUML, many companies began refining their models to the level where they became executable. The next big step is to adopt model-based testing in which standard executable models are reused to […]

Feb 052016
 
Suspect Links

Requirements change over time: new requirements are created; existing ones are modified or deleted. Systems engineers need to know the impact these changes will have on other related artifacts such as design elements or test cases. Suspect Links capability helps users track changes in requirements that are linked to design elements, as well as allow […]

Jan 122016
 
Embedded Technology Industry Reports Significant Development Cost Reduction Using MBSE and PLE

“When compared to typical systems engineering endeavors, the application of model-based systems engineering delivers a 55% reduction of the total development cost. The most mature form of MBSE is model-based product line engineering (PLE). When compared to typical systems engineering endeavors, the application of model-based product-line engineering delivers a 41.6% reduction of the total development cost.” These […]

Jan 042016
 
Why Model-Based Systems Engineering Reduces Costs

One of the common objections I’ve heard to adopting Model-Based Systems Engineering (MBSE) is that it is prohibitively expensive.  The tools used to perform MBSE are more expensive than tools previously used to perform Systems Engineering.  The costs associated with training an existing Systems Engineering workforce in the methods, semantics (languages such as UML or SysML), […]

Dec 212015
 
Applying Systems Engineering to Regulatory Compliance Activities for Medical Devices

The INCOSE Biomedical-Healthcare Model-Based Systems Engineering (MBSE) Challenge Team has developed a reference model that uses SysML to represent a generic Medical Device infusion pump and a systems engineering process for planning, developing, and obtaining regulatory approval of a medical device. This presentation describes recent updates to the model that incorporates Buede’s textbook model for […]

Nov 102015
 
Model-based Interface Control Documents (ICD)

One of the major factors for wide SysML and MBSE deployment in large industrial projects is the management of Interface Control Documents (ICDs) [1]. ICDs are at the center of systems engineering processes in most industries, and that is not supported in a straightforward way by SysML. [2] Interface Control Documents, known as ICDs, are […]

Oct 152015
 
Real World Application of MBSE at Bombardier Transportation

MBSE is an integrated approach. To get the best solution, large organizations adopt MBSE toolchains in their modeling environment. This process involves choosing the right tools from different vendors, applying client work process, and ensuring their inter-operability in the right way. Today we‘re delighted to share how MBSE is applied to model complex systems of […]

Aug 262015
 
Modeling Requirements with SysML

How modeling can be useful to better define and trace requirements In this paper, we will show how the SysML modeling language can be useful to complement the requirements process, i.e. to better define and trace requirements. The Systems Modeling Language (SysML: www.omgsysml.org) is a general-purpose graphical modeling language, defined by the Object Management Group […]

Jul 232015
 
5 Ways to Improve Modeling Productivity

When I started modeling with MagicDraw in university, it was version 8.0. Even then, MagicDraw had nice productivity features and I really loved their shortcut keys when drawing diagrams. Now we have MagicDraw 18.0 version as long-term release (supported till the next big release) and feature releases are coming every half a year with improved […]

Jul 152015
 
MBSE in Real-Life Space Exploration Projects

Systems engineering techniques have been used in spacecraft design, avionics, and engineering in general for over 60 years. At the moment, space exploration industries face new significant challenges: the largest optical and radio telescopes, missions to mars and exoplanets, reusable rockets, increase of small CubeSat satellites usage, service robots, and other. The constant increase in […]