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Model-Based Systems Engineering Using
An Effective Modeling Language
The discipline of systems engineering (SE) is transforming, with
much of the design information now captured in graphical models.
System Modeling Language (SysML) is the primary tool used to create
and retain this design information. Design information in SysML
includes operational (stakeholder) definition, technical requirements,
architectural analysis/structure, parametric definition, and test
information, which together represent nearly the entirety of SE
artifacts. An underlying database holds the SysML information so
that data from one diagram appears synchronized on other diagrams.
The benefits to the system architect are extensive.
This course shows how to architect and maintain a system definition
using SysML. The course is filled with graphic examples from SysML
models, but it is unlike other SysML courses in that the spotlight
is on the system architecting. Students do not work on a computer
during class, so that they can focus on the concepts rather than
on use of a specific software tool. The course flows through familiar
SE processes while teaching how the SysML models and structures
support and enhance each task. We cover every SE activity and every
SysML diagram, from Use Case and Activity diagrams to define operations;
through State Machine, Sequence and Parametric diagrams to define
system requirements; to Block Definition, Internal Block, and Requirements
diagrams to define architectural structure. By the completion of
this course, you will be able to apply SysML effectively in your
In addition to our complete course materials, students also receive
a copy of the seminal textbook A Practical Guide to SysML
by Friedenthal, Moore, and Steiner.
Register here to receive more
information on our courses.
course if you are:
- Designing or redesigning large systems and need better technical
- Transitioning from software engineering to systems engineering.
- Improving your systems engineering skill set.
- Working as part of a model-based systems engineering effort.
is aimed at
- Systems engineers
- Design engineers
- Technical team leaders
- System support leaders
- Others who participate in defining and developing complex systems.
|The Architecting Challenge
takes the model-based design of a remotely piloted aircraft from concept
through system design using SysML. Student groups work through the
challenge in four parts to envision a drone aircraft useful for major
event monitoring and control. In Part A, students define use cases
and activities. In Part B, they define states, sequences, and parameters.
In Part C, groups create alternative architectural concepts using
block diagrams. Finally in Part D, they fill in the model with requirements
allocation and model structure.
Systems Architecting and Engineering
(1:30) – How systems architecting and systems engineering
fit together; how model-based systems engineering (MBSE) has developed
and what benefits it offers. A systems engineering model based on
ISO-15288 and the INCOSE Handbook. What is an architecture? What
is architecting? Six principles of MBSE. Survey of current SysML
Basic SysML Concepts (1:30) –
Where SysML came from; its purpose within the SE paradigms; the
basic constructs of SysML. SysML underlying concepts; the information
database; correct vs. complete. The SysML language. SysML and UML.
The nine SysML diagram types. Common diagram structures: frames,
headers, keywords, node symbols, path symbols, icons, notes.
Operational Definition and Analysis
(3:00) – Understanding stakeholder views of the problem and
the system; stakeholder requirements; using SysML to analyze and
document the operational architecture. The concept of a use case
(scenario). System boundaries and external actors. Use
Case diagrams to define functionality. Activity
diagrams to elaborate the behavior of a use case
System Requirements Modeling (2:00)
– Modeling technical requirements; the relationships between
operations and requirements; how to document requirements and their
relationships using SysML. Requirements, their forms and uses. Requirements
diagrams to show relationships among requirements.
Types of requirement relationships and how to show them in SysML.
Requirements rationale in SysML. Constraints as a part of requirements;
the constraint block. Parametric diagrams
to define constraints. Constraint blocks to modify flows. Representing
trade-offs. Modeling requirements verification.
System Logical Architecting and Analysis
(3:00) – Requirements analysis using logical constructs;
understanding the requirements better as a step toward physical
system design; the logical architecture. Logical vs. physical architecture.
Functional design vs. object-oriented design; how SysML supports
either. The concept of a state; state transitions, triggers, guards,
and effects. State hierarchies and operation calls. State
Machine diagrams to analyze and document the event-based
behaviors. Sequence diagrams to analyze
and document the message-passing behaviors. Lifelines and interactions
System Physical Architecting (3:00)
– System physical design; how to use SysML to show the physical
architecture; the end-state of architecting. The block as a representation
of systems, components, or flow items. Block relationship types:
association, composite, reference, generalization. Block
Definition diagrams to depict structural block relationships.
Internal Block diagrams to depict dynamic
block relationships. Quantifiable characteristics in a block. Modeling
interfaces using ports and flows. Modeling block behavior. Modeling
classifications and variants. Requirements diagrams
to show hierarchical requirements allocations. Requirements allocations
in the block diagrams
Additional SysML Constructs
(1:30) – Some remaining features of SysML for better architecting;
organizing the model; allocating relationships. Package
diagrams to organize the model; types of organization;
namespaces; imports and dependencies. Requirements containment hierarchies.
Allocation between model constructs. Alternate constructs in SysML.
Customizing SysML for projects or enterprises; SysML profiles; stereotypes
Architecting Challenge Exercise
(5:00) – Student group work in four segments to practice the
major aspects of architecting with SysML; creating the SysML model
diagrams to define a system. Introduction to the remotely-piloted
aircraft system. Part A: Operational definition with use cases and
activities. Part B: Logical architecting with state machines, sequences,
and parameters. Part C: Physical architecting and alternatives with
block diagrams. Part D: Requirements allocation and package diagrams.
Summary (0:30) - Review of the
important points of the course. Interactive discussion of participant
experiences that add to the material.
Continuing Education: This course qualifies for 2.1 CEUs or 21
Eric Honour, CSEP, INCOSE Fellow, and former INCOSE President,
has been in international leadership of the engineering of systems
for over 20 years, part of a 40+ year career of complex systems development
and operation. His energetic and informative presentation style actively
involves class participants. He was the founding Chair of the INCOSE
Technical Board in 1994, and served as Director of the Systems Engineering
Center of Excellence (SECOE). He was selected in 2000 for Who’s
Who in Science and Technology and in 2004 as an INCOSE Founder. He
is on the editorial board for Systems Engineering. He has
been a successful entrepreneur, systems engineer, engineering manager,
and program manager at Harris Information Systems, E-Systems Melpar,
and Singer Link, preceded by nine years as a US Naval Officer flying
P-3 aircraft. He has led or contributed to the development of 17 major
systems.. Dr. Honour has a BSSE (Systems Engineering) from the US
Naval Academy, MSEE from the Naval Postgraduate School, and PhD from
the University of South Australia based on his ground-breaking work
to quantify the value of systems engineering.
Scott Workinger has led innovative technology development
efforts in complex, risk-laden environments for 30 years in the fields
of manufacturing (automotive, glass, optical fiber), engineering and
construction (nuclear, pulp & paper), and information technology
(expert systems, operations analysis, CAD, collaboration technology).
He currently teaches courses on program management and engineering
and consults on strategic management and technology issues. Scott
has a B.S in Engineering Physics from Lehigh University, an M.S. in
Systems Engineering from the University of Arizona, and a Ph.D. in
Civil and Environment Engineering from Stanford University.
Pratchios has over 40 years experience as a systems engineer
designing, implementing and supporting complex hardware/software systems
development. His work has included design and implementation of military
command, communications, surveillance, and information systems, and
also systems for weather imagery, publications control, and locomotive/train
control. He is an engaging instructor with a warm, informal, knowledgeable
presentation style. He has presented courses to military, Department
of Energy, contractor, and college organizations. He is an expert
in classical systems engineering including requirements management,
system design, production liaison, hardware/software integration,
program management, risk mitigation, and technical leadership. He
is a specialist in architectural development of both centralized and
distributed systems including DODAF and other types of analysis and
model development for entire system performance/throughput estimation
and validation. His experience includes Object Oriented software analysis
& design using UML, Booch, Ellis RTOOSA, and other OOA/OOD methodologies.
Working at Harris Corporation, E-Systems, and for the Navy, John has
led or contributed to the development of over a dozen major systems
including the Multi-Threat Emitter System (MUTES), the Transformational
Satellite Management Operations System (TMOS), locomotive radio remote
control systems, and the highest capacity and throughput system ever
fielded by Harris Publishing Systems. John has a BSEE from the US
Naval Academy, MSEE from the Naval Postgraduate School, and further
Page last modified 5 Sep 17