Model-Based Systems Engineering (MBSE) is the practice of developing a set of related system models that help define, design and document a system under development. These models provide an efficient way to explore, update, and communicate system aspects to stakeholders, while significantly reducing or eliminating dependence on traditional documents.
For systems engineering students, and even those already in the field, one of the core concepts of comprehending MBSE is having a clear understanding of what is meant by a system.
Although the term system is defined in a variety of ways in the systems engineering community, most definitions are similar to the one used in the U.S. Department of Defense Architecture Framework (DoDAF): “Any organized assembly of resources and procedures united and regulated by interaction or interdependence to accomplish a set of specific functions.”
The elements of a system may include people, hardware, facilities, policies and documents. For any given system, this list is limited only by the set of things required to produce its system-level results.
Examples of systems:
- A set of things working together as parts of a mechanism or an interconnecting network.
- A set of organs in the body with a common structure or function.
- A group of related hardware units or software programs or both, especially when dedicated to a single application.
- A major range of strata that corresponds to a period in time, subdivided into series.
- A group of celestial objects connected by their mutual attractive forces, especially moving in orbits about a center.
The idea that a system is more than the sum of its parts is expressed in the International Council on Systems Engineering (INCOSE) definition of a system. INCOSE defines a system as a construct or collection of different entities that together produce results no obtainable by the entities alone.
In addition, a system must tie the parts together with relationships. Also, the system must have a purpose for which the elements are assembled.
These aspects of a system are often construed narrowly in practice, causing our view of systems to be constrained or limited. In reality, systems exist wherever these three are present: parts, relationships and a purpose.
In MBSE, models are never a perfect representation of a system, but they provide knowledge and feedback sooner and more cost-effectively than implementation alone. In practice, system engineers use models to gain knowledge and to serve as a guide for system implementation. Often they use them to directly build the actual implementation.
MBSE Training is meant for a wide cross section of professionals including product managers, systems analysts, software engineers, capability developers, LSA specialists and enterprise architects.
Tonex provides basic and advanced MBSE training. This includes SysML training covering OMG SysML. Also learn about the industry standard for modeling Systems Engineering applications, Agile Modeling methods such as Scrum and Robust Process methods such as Unified Process compatible.
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