EMSE 6817: Model-Based Systems Engineering
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Questions and Answers

What is the primary focus of EMSE 6817?

  • Statistical analysis in engineering
  • Software development methodologies
  • Project management techniques
  • Model-based systems engineering (correct)

    • Dr. Stirgwolt has a PhD in Aeronautical Engineering.

    False

    What language will be introduced for representing the behavior, structure, and requirements of a system?

    SysML

    The course emphasizes the integration of _____ analysis in developing system architecture.

    <p>mathematical</p> Signup and view all the answers

    Match the following roles or qualifications of Dr. Stirgwolt:

    <p>CSEP = INCOSE Certified Systems Engineering Professional OMG Certified = Object Management Group Certified System Modeling Professional Director of MBSE = Leadership position at Belcan PhD = Doctorate degree in Systems Engineering</p> Signup and view all the answers

    Which of the following describes the 'relationships' aspect of a system?

    <p>Links between pairs of components.</p> Signup and view all the answers

    Technological growth is a slow and gradual process that happens infrequently.

    <p>False</p> Signup and view all the answers

    What must be defined to characterize a system of interest?

    <p>limits, boundaries, or scope</p> Signup and view all the answers

    The parts of a system are referred to as its __________.

    <p>components</p> Signup and view all the answers

    Match the aspect of the system with its description:

    <p>Components = The individual parts of the system Attributes = Properties of the components and system Relationships = Connections between pairs of components Scope = Defined limits and boundaries of the system</p> Signup and view all the answers

    Which of the following is NOT a motivation for Model-Based Systems Engineering (MBSE)?

    <p>Reduced product cost</p> Signup and view all the answers

    SysML v2 was released in 2017.

    <p>False</p> Signup and view all the answers

    What is the primary output of Model-Based Systems Engineering (MBSE)?

    <p>A model of the system under development</p> Signup and view all the answers

    The _____ is used to capture requirements, decompose them, and perform requirements analysis in MBSE.

    <p>requirements</p> Signup and view all the answers

    Match the following MBSE lifecycle stages to their activities:

    <p>Conceptual Development = Use model to support dialog with stakeholders Requirements = Capture and analyze requirements Design/Implementation = Capture baseline design Verification/Validation = Verify requirements with test cases</p> Signup and view all the answers

    In what year was the SysML specification adopted by OMG?

    <p>2006</p> Signup and view all the answers

    One of the benefits of MBSE is decreased complexity in system management.

    <p>True</p> Signup and view all the answers

    What is the due date for HW5?

    <p>9:00 am EST on 12/21</p> Signup and view all the answers

    What does SysML stand for?

    <p>Systems Modeling Language</p> Signup and view all the answers

    Late homework submissions are accepted up to two weeks after the due date.

    <p>False</p> Signup and view all the answers

    What percentage of the final grade do assignments contribute to?

    <p>30</p> Signup and view all the answers

    HW 1, 2, 7, and 8 require submission in __________ format.

    <p>Word or PDF</p> Signup and view all the answers

    Match each homework assignment with its submission format:

    <p>HW1 = Word or PDF file HW3 = mdzip file HW5 = mdzip file HW8 = Word or PDF file</p> Signup and view all the answers

    Which weeks are covered in the Midterm exam?

    <p>Weeks 1-5</p> Signup and view all the answers

    Students are allowed to use headphones during the Honorlock exam.

    <p>False</p> Signup and view all the answers

    When does the Final exam open?

    <p>8 PM EST on January 25</p> Signup and view all the answers

    Homework files will be submitted via __________.

    <p>Blackboard</p> Signup and view all the answers

    What will happen if a student violates the Honorlock exam policy?

    <p>Significant penalties</p> Signup and view all the answers

    Which of the following are valid model element types that can be represented in a Block Definition diagram?

    <p>Block</p> Signup and view all the answers

    Elements removed from a diagram are also removed from the model.

    <p>False</p> Signup and view all the answers

    How many types of diagrams are there in SysML?

    <p>9</p> Signup and view all the answers

    Each SysML diagram must have a diagram frame which encloses the __________.

    <p>content</p> Signup and view all the answers

    What does the diagram header contain?

    <p>Diagram kind, model element kind, model element name, diagram name</p> Signup and view all the answers

    Match the SysML diagram types with their respective roles.

    <p>Behavior = Defines system behaviors and interactions Structure = Represents the system's architecture Requirements = Captures system requirements Parametric = Specifies constraints among system elements</p> Signup and view all the answers

    A model element can appear on multiple diagrams.

    <p>True</p> Signup and view all the answers

    Which model element types are valid in an Activity diagram?

    <p>Activity</p> Signup and view all the answers

    What does an activity diagram primarily model?

    <p>The flow of actions within a controlled sequence</p> Signup and view all the answers

    A sequence diagram shows how elements of a system respond to internal and external events.

    <p>False</p> Signup and view all the answers

    What are control nodes used for in activity diagrams?

    <p>To split or join flow</p> Signup and view all the answers

    A ____ diagram shows how a system transitions between different states.

    <p>state machine</p> Signup and view all the answers

    Match the following diagram types with their primary focus:

    <p>Activity Diagram = Flow of Actions Sequence Diagram = Message Exchanges State Machine Diagram = Element States Use Case Diagram = System Functionality</p> Signup and view all the answers

    What is the purpose of a use case diagram?

    <p>To show user interactions with the system</p> Signup and view all the answers

    Blocks in a block definition diagram refer to the primary structural feature of a system.

    <p>True</p> Signup and view all the answers

    What type of diagram is used to depict how elements of a system interact through message exchanges?

    <p>sequence diagram</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course Title: EMSE 6817 Model-based Systems Engineering
    • Instructor: Dr. Ben Stirgwolt
    • Class Schedule: Saturdays, 9:00 AM - 12:10 PM EST, Nov 9 - Jan 25
    • Office Hours: 3 hours/week - Monday 8-9 PM EST, Thursday 7:30 - 9:30 PM EST
    • Zoom Link: gwu-edu.zoom.us/my/ben.stirgwolt
    • Textbook: SysML Distilled: A Brief Guide to the Systems Modeling Language, 1st Edition, by Delligatti, ISBN-13: 978-0-321-92786-6, available through GWU library
    • Homework: 30% of final grade, 8 assignments, due Saturdays at 9:00 AM EST. HW 1, 2, 7, 8 are free response (submit Word or PDF file); HW 3, 4, 5, 6 are models (submit mdzip file). Late submissions penalized 20%; no late assignments accepted after 1 week.
    • Midterm Exam: 35% of grade, Covers all material from Weeks 1-5, Opens 8 PM EST Saturday, Dec. 21, due 8 PM EST Monday, Dec. 23
    • Final Exam: 35% of grade, Focus is on Weeks 6-10 (which incorporate concepts from Weeks 1-5), Opens 8 PM EST Saturday, Jan. 25, due 8 PM EST Monday, Jan. 27.

    Instructor Information

    • Degrees: BS - Aeronautical/Astronautical Engineering - Purdue University, MEng - Systems Engineering - Penn State University, PhD - Systems Engineering - George Washington University
    • Professional Affiliations: INCOSE CSEP & OMG Certified System Modeling Professional
    • Current Role: Director of MBSE at Belcan, an engineering services company. Previously SE Manager at Lockheed Martin.

    Model-Based Systems Engineering (MBSE)

    • Introduction: MBSE is a formalized application of modeling that supports system requirements, design, analysis, verification, and validation activities, and continues throughout development and later life cycle phases.
    • Focus: Shifting from creating documentation to managing/controlling a model of the system.
    • Benefits/Motivations: Improved communication, ability to manage system complexity, improved product quality, knowledge capture, reduced development risk, and increased productivity.
    • Relationship to Systems Engineering: MBSE is not a subset of systems engineering, but instead, it has the same goals.
    • Historical Overview: Briefly traces the evolution of MBSE.
    • Google Trends: Demonstrates growing interest in MBSE over time.
    • Three Pillars: Modeling Language (defines elements and relationships), Modeling Method (processes used to create the model), and Modeling Tool (means for creating models & compliant with language rules).

    Systems Thinking

    • Key Concepts: Systems thinking involves dealing with complexity, perspective from systems theory which considers the whole system and how parts interrelate. Systems thinking must consider the system as a black box within its environment

    System

    • Definitions: A system is a set of interacting elements that work together to accomplish some purpose; an assemblage/combination of functionally related elements and parts; a set of interrelated components functioning together toward some common objective(s) or purpose(s).
    • Aspects: Components (the parts), Attributes (properties of the components and the system), and Relationships (the connections among the components).
    • Scope/Purpose: Must define the purpose/scope of the system to help engineer the system's components for desired functions.

    MBSE Throughout the Lifecycle

    • Stages of Development: Conceptual Development, Requirements, Architecture, Design/Implementation, Operation/Maintenance, Verification/Validation, Integration/Test
    • Overview of each of the stages in the lifecycle.

    Defining a Model

    • Definitions: A model is an abstraction of a system that simplifies the real system to aid in understanding.
    • Role: A central repository for analyses.
    • Examples: Model-based design using annotated 3D geometry to unify design, manufacturing, and quality information.

    SysML (Systems Modeling Language)

    • Description: SysML is a general-purpose graphical modeling language
    • Function: Supports analysis, specification, design, verification, and validation of complex systems (including hardware, software, information, personnel, procedures, and facilities).
    • Purpose: Intended to facilitate creation of cohesive, consistent models.
    • SysML is an extension of UML, and it uses the same principles, however it is a different subset.

    Diagram Types

    • Diagram types categorized into different types. Examples include, but not limited to, package, activity, sequence, state machine, use case, block definition, internal block, and parametric. Specific characteristics of each type are outlined for each diagram type. Explanation of how diagrams are related to models (diagrams are views of the model, not the entire model), and how the different diagram types are used in the life cycle. Relationship between diagrams and views.

    Views and Viewpoints

    • Views: A container of information about parts of a model.
    • View Points: Specific conventions and rules for producing views.

    Additional Study Points

    • Importance of identifying stakeholders
    • How to identify and address potential challenges for implementing MBSE in a particular organization.

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    Related Documents

    Class 1 Lecture - Model-Based Systems Engineering PDF

    Description

    Test your knowledge on EMSE 6817, focusing on Model-Based Systems Engineering (MBSE). This quiz covers key concepts about system behavior, structure, and the essential roles in MBSE, along with a focus on SysML. Dive into the details and enhance your understanding of system architecture.

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