ema620_module4_worksheet
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Southern New Hampshire University *
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EMA 620
Subject
Industrial Engineering
Date
Jan 9, 2024
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Uploaded by BrigadierStarButterfly225
EMA 620 Module Four Worksheet
In this course, you will be asked to respond to a series of short-response questions. In this module, these
short-response questions will allow you to check your understanding of system structure and
architecture.
This worksheet will be graded with the Module Four Assignment Rubric.
1.
Develop a top-level function list and functional block diagram for an automatic teller machine
(ATM) system.
Function list: card verification, user validation, display options, account balance check, deposit,
withdrawal, balance transfer, bill payment, and print receipt
See attached pdf.
2.
(a) Identify the functions of a common desktop computer.
1.
Data Input
2.
Data Storage
3.
Data Processing
4.
Data Output
(b) Identify the components of a common desktop computer.
1.
Central Processing Unit (CPU)
2.
Graphical Processing Unit (GPU)
3.
Random Access Memory (RAM)
4.
Motherboard
5.
Computer Monitor
6.
Memory
7.
Storage
8.
Mouse
9.
Keyboard
10. Speakers
11. Microphone
12.
Hard drive
Allocate the functions in (a) to the components in (b).
1.
Central Processing Unit (CPU)
1.
Data Processing
2.
Graphical Processing Unit (GPU)
1.
Data Processing (graphics)
3.
Random Access Memory (RAM)
1.
Data Storage (short-term)
4.
Motherboard
1.
Data Processing
5.
Computer Monitor
1.
Data Output (movement and keyboard)
6.
Memory
1.
Data Storage (short-term)
7.
Storage
1.
Data Storage (long-term)
8.
Mouse
1.
Data Input (movement)
9.
Keyboard
1.
Data Input (keyboard)
10. Speakers
1.
Data Output (sound)
11. Microphone
1.
Data Input (sound)
12.
Hard drive
1.
Data Storage (long-term)
3.
Draw a physical block diagram of an electric coffeemaker. Use rectangles to represent physical
components, and label the interfaces between the components.
See attached pdf.
4.
Explain and contrast between the following:
o
The system
o
A system is a “complex combination of resources, integrated in such a manner as
to fulfill a specified operational requirement…[or] responding to some identified
need…[, where] the various elements of a system must be directly tied to and
supportive in the accomplishment of some given mission scenario or series of
scenarios” (Blanchard & Blyler, 2016, p.1). This indicates that a system is a group
of various components that work together to achieve a common goal.
o
System architecture
o
A system architecture is “the fundamental organization of a system, embodied in
its components, their relationships to each other and to the environment, and
the principles guiding its design and evolution” (Blanchard & Blyler, 2016, p. 26).
Therefore, a system architecture is the overall high-level design of the system
and defines how the system and its components are structured, behave, and
interact.
o
An architecture framework
o
An architectural framework provides “a set of principles, methods, and tools to
guide the design, development, and evolution of your system” (LinkedIn, n.d.).
Therefore, an architecture framework is the set of rules that provides a structure
to a system.
o
A modeling language
o
A modeling language contains specific semantics and syntax that are used to
express the system’s meaning by “specifying, analyzing, designing, and verifying
complex systems that may include hardware, software, information, personnel,
procedures, and facilities” (Object Management Group, n.d.). Therefore,
modeling language structures are used, in combination with behavior diagrams,
to “automatically generate textual requirements…based on model construct
relationships to describe system architectures and designs”, so it is easier for
designers to “assess the impact of requirement changes and reduce requirement
management costs” (Blanchard & Blyler, 2016, p. 309).
o
A model
o
A model is used to represent “a system and its environment” and can have many
forms based on the type of system and modeling purpose, such as a physical,
mathematical, or logical representation (SEBok, 2021). It uses modeling
language to communicate certain information about the system.
5.
Select a system with which you are familiar. Construct an operational functional diagram. Show
inputs-outputs and how specific resource requirements are identified (e.g., hardware, software,
people, facilities, data, etc.).
See attached pdf.
6.
What is a
model?
Identify some of the basic characteristics of a model. List some of the benefits
associated with the use of mathematical models in systems engineering. What
problems/concerns can you think of?
According to SEBok (2021), a model can be the “physical, mathematical, or logical representation
of a system” that communicates information to others about the system. A model is a simplified,
sufficient representation of the system, so some characteristics are that there are “rules in
simplifying, representing, or abstracting” that ensures the system’s “structure and behavior are
apparent and its complexity is manageable” (Shevchenko, 2020). Other than rules, modeling uses
language, structure, argumentation, and presentation. A model follows the chosen modeling
language’s “rules for entities and relationships” to clearly communicate what the model is
representing (Shevchenko, 2020). Shevchenko (2020) states that a model also needs to have a
structure to make it “understandable, usable, and maintainable” to show stakeholders and argue
that the design “satisfies the system’s requirements”. Some of the benefits associated with the use
of mathematical models in systems engineering are that it “allows a better understanding of how the
system works”, provides the system’s outputs for various inputs so users can understand how
different components affect other components, and allows the viewer to “understand the limitations
of the system in extreme working conditions”, and this model can be used for “closed-loop
controller” system designs (X-engineer, n.d.). An issue with models is that the model might not be
accurate because a model is a simplified representation of the system, so if it doesn’t have all the
sufficient components to accurately represent the system, then it will be inaccurate. Another issue is
scalability because the more complex a system becomes, multiple models may need to be updated
to reflect the changes, and it might be hard to keep track of what needs to be added and how it will
affect the current components in the model.
References
Blanchard, B.S., & Blyler, J.E. (2016).
System engineering management
(5
th
ed.). John Wiley & Sons.
LinkedIn. (n.d.).
How do you choose the best architecture framework for your system
?
https://www.linkedin.com/advice/1/how-do-you-choose-best-architecture-framework
Object Management Group. (n.d.).
What is SYSML
? https://www.omgsysml.org/what-is-sysml.htm
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SEBok. (2021).
What is a Model
?
https://sebokwiki.org/w/index.php?title=What_is_a_Model
%3F&oldid=67809.
Shevchenko, N. (2020).
An introduction to model-based systems engineering
. Carnegie Mellon
University. https://insights.sei.cmu.edu/blog/introduction-model-based-systems-engineering-
mbse/
X-engineer. (n.d.).
Types of mathematical models
. https://x-engineer.org/types-mathematical-models/